1656343231056 has 120 divisors (see below), whose sum is σ = 4929201374760. Its totient is φ = 517406711808.

The previous prime is 1656343231033. The next prime is 1656343231087. The reversal of 1656343231056 is 6501323436561.

1656343231056 is a `hidden beast` number, since 1 + 6 + 5 + 634 + 3 + 2 + 3 + 1 + 0 + 5 + 6 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 350771907600 + 1305571323456 = 592260^2 + 1142616^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 881571 + ... + 2022338.

It is an arithmetic number, because the mean of its divisors is an integer number (41076678123).

Almost surely, 2^{1656343231056} is an apocalyptic number.

1656343231056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1656343231056 is an abundant number, since it is smaller than the sum of its proper divisors (3272858143704).

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

1656343231056 is a wasteful number, since it uses less digits than its factorization.

1656343231056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2904173 (or 2904164 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 45.

The spelling of 1656343231056 in words is "one trillion, six hundred fifty-six billion, three hundred forty-three million, two hundred thirty-one thousand, fifty-six".