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6655494293761 = 64710286699063
BaseRepresentation
bin110000011011001101001…
…0111111000100100000001
3212120020222211200211010211
41200312122113320210001
51333020423014400021
622053254124354121
71254562232036125
oct140663227704401
925506884624124
106655494293761
112136641025245
128b5a676a5941
133937c2123601
141901b0373585
15b81d0bde3e1
hex60d9a5f8901

6655494293761 has 4 divisors (see below), whose sum is σ = 6665780993472. Its totient is φ = 6645207594052.

The previous prime is 6655494293741. The next prime is 6655494293891. The reversal of 6655494293761 is 1673924945566.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6655494293761 - 231 = 6653346810113 is a prime.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6655494293741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5143348885 + ... + 5143350178.

It is an arithmetic number, because the mean of its divisors is an integer number (1666445248368).

Almost surely, 26655494293761 is an apocalyptic number.

It is an amenable number.

6655494293761 is a deficient number, since it is larger than the sum of its proper divisors (10286699711).

6655494293761 is a wasteful number, since it uses less digits than its factorization.

6655494293761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10286699710.

The product of its digits is 293932800, while the sum is 67.

The spelling of 6655494293761 in words is "six trillion, six hundred fifty-five billion, four hundred ninety-four million, two hundred ninety-three thousand, seven hundred sixty-one".

Divisors: 1 647 10286699063 6655494293761