1056775664 has 40 divisors (see below), whose sum is σ = 2441748480. Its totient is φ = 433211328.

The previous prime is 1056775637. The next prime is 1056775669. The reversal of 1056775664 is 4665776501.

It is a super-2 number, since 2×1056775664² = 2233549608045281792, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1056775669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202544 + ... + 207695.

It is an arithmetic number, because the mean of its divisors is an integer number (61043712).

Almost surely, 2^1056775664 is an apocalyptic number.

1056775664 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1056775664 is an abundant number, since it is smaller than the sum of its proper divisors (1384972816).

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

1056775664 is a wasteful number, since it uses less digits than its factorization.

1056775664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410277 (or 410271 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 47.

The square root of 1056775664 is about 32508.0861325302. The cubic root of 1056775664 is about 1018.5779439995.

The spelling of 1056775664 in words is "one billion, fifty-six million, seven hundred seventy-five thousand, six hundred sixty-four".