6550655101511 has 4 divisors (see below), whose sum is σ = 6550733893032. Its totient is φ = 6550576309992.

The previous prime is 6550655101481. The next prime is 6550655101513. The reversal of 6550655101511 is 1151015560556.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6550655101511 - 2³⁰ = 6549581359687 is a prime.

It is a super-2 number, since 2×6550655101511² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6550655101513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39270920 + ... + 39437373.

It is an arithmetic number, because the mean of its divisors is an integer number (1637683473258).

Almost surely, 2^{6550655101511} is an apocalyptic number.

6550655101511 is a deficient number, since it is larger than the sum of its proper divisors (78791521).

6550655101511 is an equidigital number, since it uses as much as digits as its factorization.

6550655101511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78791520.

The product of its (nonzero) digits is 112500, while the sum is 41.

The spelling of 6550655101511 in words is "six trillion, five hundred fifty billion, six hundred fifty-five million, one hundred one thousand, five hundred eleven".