20567296400 has 60 divisors (see below), whose sum is σ = 56471927232. Its totient is φ = 7051643520.

The previous prime is 20567296369. The next prime is 20567296423. The reversal of 20567296400 is 469276502.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3669932 + ... + 3675531.

Almost surely, 2^20567296400 is an apocalyptic number.

20567296400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20567296400 is an abundant number, since it is smaller than the sum of its proper divisors (35904630832).

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

20567296400 is a wasteful number, since it uses less digits than its factorization.

20567296400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7345488 (or 7345477 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 41.

The spelling of 20567296400 in words is "twenty billion, five hundred sixty-seven million, two hundred ninety-six thousand, four hundred".