16660164915 has 64 divisors (see below), whose sum is σ = 31307443200. Its totient is φ = 8382528000.

The previous prime is 16660164893. The next prime is 16660164929. The reversal of 16660164915 is 51946106661.

16660164915 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16660164915 - 2¹¹ = 16660162867 is a prime.

It is a super-2 number, since 2×16660164915² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 604690 + ... + 631640.

It is an arithmetic number, because the mean of its divisors is an integer number (489178800).

Almost surely, 2^16660164915 is an apocalyptic number.

16660164915 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16660164915 is a deficient number, since it is larger than the sum of its proper divisors (14647278285).

16660164915 is a wasteful number, since it uses less digits than its factorization.

16660164915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27225 (or 27219 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The spelling of 16660164915 in words is "sixteen billion, six hundred sixty million, one hundred sixty-four thousand, nine hundred fifteen".