15316818066 has 64 divisors (see below), whose sum is σ = 39315922560. Its totient is φ = 4368430080.

The previous prime is 15316818059. The next prime is 15316818071. The reversal of 15316818066 is 66081861351.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 748311 + ... + 768506.

It is an arithmetic number, because the mean of its divisors is an integer number (614311290).

Almost surely, 2^15316818066 is an apocalyptic number.

15316818066 is an abundant number, since it is smaller than the sum of its proper divisors (23999104494).

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

15316818066 is a wasteful number, since it uses less digits than its factorization.

15316818066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1516856 (or 1516850 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The spelling of 15316818066 in words is "fifteen billion, three hundred sixteen million, eight hundred eighteen thousand, sixty-six".