108605140515 has 24 divisors (see below), whose sum is σ = 188256717168. Its totient is φ = 57920339520.

The previous prime is 108605140507. The next prime is 108605140519. The reversal of 108605140515 is 515041506801.

108605140515 is a `hidden beast` number, since 1 + 0 + 8 + 605 + 1 + 40 + 5 + 1 + 5 = 666.

It is not a de Polignac number, because 108605140515 - 2³ = 108605140507 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 108605140515.

It is not an unprimeable number, because it can be changed into a prime (108605140519) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1793025 + ... + 1852605.

It is an arithmetic number, because the mean of its divisors is an integer number (7844029882).

Almost surely, 2^108605140515 is an apocalyptic number.

108605140515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

108605140515 is a deficient number, since it is larger than the sum of its proper divisors (79651576653).

108605140515 is a wasteful number, since it uses less digits than its factorization.

108605140515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100099 (or 100096 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 36.

The spelling of 108605140515 in words is "one hundred eight billion, six hundred five million, one hundred forty thousand, five hundred fifteen".