1630720664364 has 72 divisors (see below), whose sum is σ = 4182714350640. Its totient is φ = 494117296640.

The previous prime is 1630720664323. The next prime is 1630720664411. The reversal of 1630720664364 is 4634660270361.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20999272 + ... + 21076784.

It is an arithmetic number, because the mean of its divisors is an integer number (58093254870).

Almost surely, 2^{1630720664364} is an apocalyptic number.

It is an amenable number.

1630720664364 is an abundant number, since it is smaller than the sum of its proper divisors (2551993686276).

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

1630720664364 is a wasteful number, since it uses less digits than its factorization.

1630720664364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92031 (or 92018 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 48.

The spelling of 1630720664364 in words is "one trillion, six hundred thirty billion, seven hundred twenty million, six hundred sixty-four thousand, three hundred sixty-four".