57643576656 has 40 divisors (see below), whose sum is σ = 148940854080. Its totient is φ = 19210876416.

The previous prime is 57643576577. The next prime is 57643576657. The reversal of 57643576656 is 65667534675.

It is a super-2 number, since 2×57643576656² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 57643576656.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57643576657) 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 7 ways as a sum of consecutive naturals, for example, 147525 + ... + 370203.

It is an arithmetic number, because the mean of its divisors is an integer number (3723521352).

Almost surely, 2^57643576656 is an apocalyptic number.

It is an amenable number.

57643576656 is an abundant number, since it is smaller than the sum of its proper divisors (91297277424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57643576656 is a wasteful number, since it uses less digits than its factorization.

57643576656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228083 (or 228077 counting only the distinct ones).

The product of its digits is 95256000, while the sum is 60.

The spelling of 57643576656 in words is "fifty-seven billion, six hundred forty-three million, five hundred seventy-six thousand, six hundred fifty-six".