45056643556 has 12 divisors (see below), whose sum is σ = 81568061820. Its totient is φ = 21751483040.

The previous prime is 45056643521. The next prime is 45056643571. The reversal of 45056643556 is 65534665054.

It can be written as a sum of positive squares in 2 ways, for example, as 36781102656 + 8275540900 = 191784^2 + 90970^2 .

It is a super-2 number, since 2×45056643556² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194209555 + ... + 194209786.

It is an arithmetic number, because the mean of its divisors is an integer number (6797338485).

Almost surely, 2^45056643556 is an apocalyptic number.

It is an amenable number.

45056643556 is a deficient number, since it is larger than the sum of its proper divisors (36511418264).

45056643556 is a wasteful number, since it uses less digits than its factorization.

45056643556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388419374 (or 388419372 counting only the distinct ones).

The product of its (nonzero) digits is 6480000, while the sum is 49.

The spelling of 45056643556 in words is "forty-five billion, fifty-six million, six hundred forty-three thousand, five hundred fifty-six".