1057605664 has 24 divisors (see below), whose sum is σ = 2191749840. Its totient is φ = 500970816.

The previous prime is 1057605631. The next prime is 1057605673. The reversal of 1057605664 is 4665067501.

It is a super-2 number, since 2×1057605664² = 2237059481049761792, which 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, 869134 + ... + 870349.

It is an arithmetic number, because the mean of its divisors is an integer number (91322910).

Almost surely, 2^1057605664 is an apocalyptic number.

It is an amenable number.

1057605664 is an abundant number, since it is smaller than the sum of its proper divisors (1134144176).

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

1057605664 is a wasteful number, since it uses less digits than its factorization.

1057605664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1739512 (or 1739504 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 40.

The square root of 1057605664 is about 32520.8496813967. The cubic root of 1057605664 is about 1018.8445406185.

The spelling of 1057605664 in words is "one billion, fifty-seven million, six hundred five thousand, six hundred sixty-four".