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20266552511 = 237312070609
BaseRepresentation
bin10010110111111110…
…110000110010111111
31221022102002112112222
4102313332300302333
5313001214140021
613151010315555
71315136565632
oct226776606277
957272075488
1020266552511
11865aa38957
123b17288bbb
131bac99450a
14da386dc19
157d936e6ab
hex4b7fb0cbf

20266552511 has 8 divisors (see below), whose sum is σ = 21437403360. Its totient is φ = 19119843072.

The previous prime is 20266552477. The next prime is 20266552513. The reversal of 20266552511 is 11525566202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20266552511 - 218 = 20266290367 is a prime.

It is a super-2 number, since 2×202665525112 (a number of 21 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 (20266552513) 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 7 ways as a sum of consecutive naturals, for example, 6033626 + ... + 6036983.

It is an arithmetic number, because the mean of its divisors is an integer number (2679675420).

Almost surely, 220266552511 is an apocalyptic number.

20266552511 is a deficient number, since it is larger than the sum of its proper divisors (1170850849).

20266552511 is a wasteful number, since it uses less digits than its factorization.

20266552511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12070705.

The product of its (nonzero) digits is 36000, while the sum is 35.

The spelling of 20266552511 in words is "twenty billion, two hundred sixty-six million, five hundred fifty-two thousand, five hundred eleven".

Divisors: 1 23 73 1679 12070609 277624007 881154457 20266552511