655093928864 has 96 divisors (see below), whose sum is σ = 1403952083856. Its totient is φ = 299671879680.

The previous prime is 655093928807. The next prime is 655093928891. The reversal of 655093928864 is 468829390556.

It can be written as a sum of positive squares in 8 ways, for example, as 35378600464 + 619715328400 = 188092^2 + 787220^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 655093928864.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6125192 + ... + 6231224.

Almost surely, 2^655093928864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 655093928864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (701976041928).

655093928864 is an abundant number, since it is smaller than the sum of its proper divisors (748858154992).

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

655093928864 is a wasteful number, since it uses less digits than its factorization.

655093928864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106378 (or 106370 counting only the distinct ones).

The product of its (nonzero) digits is 111974400, while the sum is 65.

The spelling of 655093928864 in words is "six hundred fifty-five billion, ninety-three million, nine hundred twenty-eight thousand, eight hundred sixty-four".