20330628876 has 18 divisors (see below), whose sum is σ = 51391311972. Its totient is φ = 6776876280.

The previous prime is 20330628869. The next prime is 20330628893. The reversal of 20330628876 is 67882603302.

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 282369810 + ... + 282369881.

Almost surely, 2^20330628876 is an apocalyptic number.

It is an amenable number.

20330628876 is an abundant number, since it is smaller than the sum of its proper divisors (31060683096).

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

20330628876 is a wasteful number, since it uses less digits than its factorization.

20330628876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564739701 (or 564739696 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The spelling of 20330628876 in words is "twenty billion, three hundred thirty million, six hundred twenty-eight thousand, eight hundred seventy-six".