656212553411 has 4 divisors (see below), whose sum is σ = 656239839024. Its totient is φ = 656185267800.

The previous prime is 656212553369. The next prime is 656212553413. The reversal of 656212553411 is 114355212656.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-656212553411 is a prime.

It is a super-2 number, since 2×656212553411² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (656212553413) 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, 13606700 + ... + 13654841.

It is an arithmetic number, because the mean of its divisors is an integer number (164059959756).

Almost surely, 2^656212553411 is an apocalyptic number.

656212553411 is a deficient number, since it is larger than the sum of its proper divisors (27285613).

656212553411 is a wasteful number, since it uses less digits than its factorization.

656212553411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27285612.

The product of its digits is 216000, while the sum is 41.

The spelling of 656212553411 in words is "six hundred fifty-six billion, two hundred twelve million, five hundred fifty-three thousand, four hundred eleven".