13566009136 has 20 divisors (see below), whose sum is σ = 26334415432. Its totient is φ = 6770030976.

The previous prime is 13566009133. The next prime is 13566009167. The reversal of 13566009136 is 63190066531.

It is not an unprimeable number, because it can be changed into a prime (13566009131) 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, 802221 + ... + 818956.

Almost surely, 2^13566009136 is an apocalyptic number.

13566009136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13566009136 is a deficient number, since it is larger than the sum of its proper divisors (12768406296).

13566009136 is a wasteful number, since it uses less digits than its factorization.

13566009136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1621708 (or 1621702 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 40.

The spelling of 13566009136 in words is "thirteen billion, five hundred sixty-six million, nine thousand, one hundred thirty-six".