20549352964 has 12 divisors (see below), whose sum is σ = 41098705984. Its totient is φ = 8806865544.

The previous prime is 20549352961. The next prime is 20549352977. The reversal of 20549352964 is 46925394502.

20549352964 is an admirable number.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (20549352961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 366952704 + ... + 366952759.

Almost surely, 2^20549352964 is an apocalyptic number.

It is an amenable number.

20549352964 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20549352964 is a wasteful number, since it uses less digits than its factorization.

20549352964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733905474 (or 733905472 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 49.

The spelling of 20549352964 in words is "twenty billion, five hundred forty-nine million, three hundred fifty-two thousand, nine hundred sixty-four".