20376641328 has 20 divisors (see below), whose sum is σ = 52639656888. Its totient is φ = 6792213760.

The previous prime is 20376641309. The next prime is 20376641353. The reversal of 20376641328 is 82314667302.

It is a self number, because there is not a number n which added to its sum of digits gives 20376641328.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212256633 + ... + 212256728.

Almost surely, 2^20376641328 is an apocalyptic number.

It is an amenable number.

20376641328 is an abundant number, since it is smaller than the sum of its proper divisors (32263015560).

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

20376641328 is a wasteful number, since it uses less digits than its factorization.

20376641328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424513372 (or 424513366 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 42.

The spelling of 20376641328 in words is "twenty billion, three hundred seventy-six million, six hundred forty-one thousand, three hundred twenty-eight".