655630626036556 has 12 divisors (see below), whose sum is σ = 1161877058799520. Its totient is φ = 323665752093840.

The previous prime is 655630626036511. The next prime is 655630626036557.

It is a happy number.

655630626036556 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×655630626036556² (a number of 30 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (64) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (655630626036557) 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, 1037390230755 + ... + 1037390231386.

Almost surely, 2^{655630626036556} is an apocalyptic number.

It is an amenable number.

655630626036556 is a deficient number, since it is larger than the sum of its proper divisors (506246432762964).

655630626036556 is a wasteful number, since it uses less digits than its factorization.

655630626036556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2074780462224 (or 2074780462222 counting only the distinct ones).

The product of its (nonzero) digits is 524880000, while the sum is 64.

The spelling of 655630626036556 in words is "six hundred fifty-five trillion, six hundred thirty billion, six hundred twenty-six million, thirty-six thousand, five hundred fifty-six".