13016806566 has 16 divisors (see below), whose sum is σ = 26873407488. Its totient is φ = 4198969800.

The previous prime is 13016806559. The next prime is 13016806591. The reversal of 13016806566 is 66560861031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34991230 + ... + 34991601.

It is an arithmetic number, because the mean of its divisors is an integer number (1679587968).

Almost surely, 2^13016806566 is an apocalyptic number.

13016806566 is an abundant number, since it is smaller than the sum of its proper divisors (13856600922).

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

13016806566 is a wasteful number, since it uses less digits than its factorization.

13016806566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69982867.

The product of its (nonzero) digits is 155520, while the sum is 42.

The spelling of 13016806566 in words is "thirteen billion, sixteen million, eight hundred six thousand, five hundred sixty-six".