1630386725568 has 56 divisors (see below), whose sum is σ = 4567480468272. Its totient is φ = 511493873664.

The previous prime is 1630386725503. The next prime is 1630386725573. The reversal of 1630386725568 is 8655276830361.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 249749605 + ... + 249756132.

Almost surely, 2^{1630386725568} is an apocalyptic number.

It is an amenable number.

1630386725568 is an abundant number, since it is smaller than the sum of its proper divisors (2937093742704).

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

1630386725568 is a wasteful number, since it uses less digits than its factorization.

1630386725568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499505769 (or 499505759 counting only the distinct ones).

The product of its (nonzero) digits is 43545600, while the sum is 60.

The spelling of 1630386725568 in words is "one trillion, six hundred thirty billion, three hundred eighty-six million, seven hundred twenty-five thousand, five hundred sixty-eight".