20910866830632 has 48 divisors (see below), whose sum is σ = 56644837704000. Its totient is φ = 6968905554336.

The previous prime is 20910866830627. The next prime is 20910866830649. The reversal of 20910866830632 is 23603866801902.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28455282 + ... + 29180897.

It is an arithmetic number, because the mean of its divisors is an integer number (1180100785500).

Almost surely, 2^{20910866830632} is an apocalyptic number.

It is an amenable number.

20910866830632 is an abundant number, since it is smaller than the sum of its proper divisors (35733970873368).

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

20910866830632 is a wasteful number, since it uses less digits than its factorization.

20910866830632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57641230 (or 57641223 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 54.

The spelling of 20910866830632 in words is "twenty trillion, nine hundred ten billion, eight hundred sixty-six million, eight hundred thirty thousand, six hundred thirty-two".