20567209496 has 32 divisors (see below), whose sum is σ = 40004193600. Its totient is φ = 9905775360.

The previous prime is 20567209493. The next prime is 20567209511. The reversal of 20567209496 is 69490276502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20567209493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 370955 + ... + 422778.

It is an arithmetic number, because the mean of its divisors is an integer number (1250131050).

Almost surely, 2^20567209496 is an apocalyptic number.

It is an amenable number.

20567209496 is a deficient number, since it is larger than the sum of its proper divisors (19436984104).

20567209496 is a wasteful number, since it uses less digits than its factorization.

20567209496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793859 (or 793855 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 50.

The spelling of 20567209496 in words is "twenty billion, five hundred sixty-seven million, two hundred nine thousand, four hundred ninety-six".