1056650665 has 16 divisors (see below), whose sum is σ = 1476465408. Its totient is φ = 710888256.

The previous prime is 1056650627. The next prime is 1056650671. The reversal of 1056650665 is 5660566501.

It is a cyclic number.

It is not a de Polignac number, because 1056650665 - 2⁷ = 1056650537 is a prime.

It is a super-2 number, since 2×1056650665² = 2233021255689884450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 282957 + ... + 286666.

It is an arithmetic number, because the mean of its divisors is an integer number (92279088).

Almost surely, 2^1056650665 is an apocalyptic number.

It is an amenable number.

1056650665 is a deficient number, since it is larger than the sum of its proper divisors (419814743).

1056650665 is an equidigital number, since it uses as much as digits as its factorization.

1056650665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569688.

The product of its (nonzero) digits is 162000, while the sum is 40.

The square root of 1056650665 is about 32506.1634924825. The cubic root of 1056650665 is about 1018.5377821345.

The spelling of 1056650665 in words is "one billion, fifty-six million, six hundred fifty thousand, six hundred sixty-five".