13206631564 has 12 divisors (see below), whose sum is σ = 26413263184. Its totient is φ = 5659984944.

The previous prime is 13206631561. The next prime is 13206631573. The reversal of 13206631564 is 46513660231.

13206631564 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (13206631561) 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, 235832679 + ... + 235832734.

Almost surely, 2^13206631564 is an apocalyptic number.

13206631564 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13206631564 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.

13206631564 is a wasteful number, since it uses less digits than its factorization.

13206631564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471665424 (or 471665422 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 37.

The spelling of 13206631564 in words is "thirteen billion, two hundred six million, six hundred thirty-one thousand, five hundred sixty-four".