1055577440556 has 18 divisors (see below), whose sum is σ = 2668265197052. Its totient is φ = 351859146840.

The previous prime is 1055577440537. The next prime is 1055577440563. The reversal of 1055577440556 is 6550447755501.

1055577440556 is a `hidden beast` number, since 10 + 5 + 5 + 5 + 7 + 74 + 4 + 0 + 556 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×1055577440556² (a number of 25 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14660797750 + ... + 14660797821.

Almost surely, 2^{1055577440556} is an apocalyptic number.

It is an amenable number.

1055577440556 is an abundant number, since it is smaller than the sum of its proper divisors (1612687756496).

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

1055577440556 is a wasteful number, since it uses less digits than its factorization.

1055577440556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29321595581 (or 29321595576 counting only the distinct ones).

The product of its (nonzero) digits is 14700000, while the sum is 54.

The spelling of 1055577440556 in words is "one trillion, fifty-five billion, five hundred seventy-seven million, four hundred forty thousand, five hundred fifty-six".