108909124015 has 16 divisors (see below), whose sum is σ = 141075691200. Its totient is φ = 80465389312.

The previous prime is 108909124013. The next prime is 108909124033. The reversal of 108909124015 is 510421909801.

It is a cyclic number.

It is not a de Polignac number, because 108909124015 - 2¹ = 108909124013 is a prime.

It is a super-2 number, since 2×108909124015² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108909124013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16324870 + ... + 16331539.

It is an arithmetic number, because the mean of its divisors is an integer number (8817230700).

Almost surely, 2^108909124015 is an apocalyptic number.

108909124015 is a deficient number, since it is larger than the sum of its proper divisors (32166567185).

108909124015 is a wasteful number, since it uses less digits than its factorization.

108909124015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32656466.

The product of its (nonzero) digits is 25920, while the sum is 40.

The spelling of 108909124015 in words is "one hundred eight billion, nine hundred nine million, one hundred twenty-four thousand, fifteen".