20910830264 has 16 divisors (see below), whose sum is σ = 39219741000. Its totient is φ = 10452232672.

The previous prime is 20910830257. The next prime is 20910830273. The reversal of 20910830264 is 46203801902.

It is a congruent number.

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, 369767 + ... + 422550.

Almost surely, 2^20910830264 is an apocalyptic number.

It is an amenable number.

20910830264 is a deficient number, since it is larger than the sum of its proper divisors (18308910736).

20910830264 is a wasteful number, since it uses less digits than its factorization.

20910830264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795622 (or 795618 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The spelling of 20910830264 in words is "twenty billion, nine hundred ten million, eight hundred thirty thousand, two hundred sixty-four".