1630565056 has 28 divisors (see below), whose sum is σ = 3276620320. Its totient is φ = 804960000.

The previous prime is 1630565033. The next prime is 1630565113. The reversal of 1630565056 is 6505650361.

It is a happy number.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156195 + ... + 166306.

Almost surely, 2^1630565056 is an apocalyptic number.

1630565056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1630565056 is an abundant number, since it is smaller than the sum of its proper divisors (1646055264).

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

1630565056 is an equidigital number, since it uses as much as digits as its factorization.

1630565056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322592 (or 322582 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 37.

The square root of 1630565056 is about 40380.2557693732. The cubic root of 1630565056 is about 1177.0078977099.

The spelling of 1630565056 in words is "one billion, six hundred thirty million, five hundred sixty-five thousand, fifty-six".