2630553664 has 28 divisors (see below), whose sum is σ = 5318502444. Its totient is φ = 1290458624.

The previous prime is 2630553661. The next prime is 2630553697. The reversal of 2630553664 is 4663550362.

It can be written as a sum of positive squares in 2 ways, for example, as 2025000000 + 605553664 = 45000^2 + 24608^2 .

It is not an unprimeable number, because it can be changed into a prime (2630553661) by changing a digit.

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, 384367 + ... + 391150.

Almost surely, 2^2630553664 is an apocalyptic number.

It is an amenable number.

2630553664 is an abundant number, since it is smaller than the sum of its proper divisors (2687948780).

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

2630553664 is an equidigital number, since it uses as much as digits as its factorization.

2630553664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775582 (or 775572 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 40.

The square root of 2630553664 is about 51288.9234045715. The cubic root of 2630553664 is about 1380.4342370777.

The spelling of 2630553664 in words is "two billion, six hundred thirty million, five hundred fifty-three thousand, six hundred sixty-four".