108666499645 has 48 divisors (see below), whose sum is σ = 150977514240. Its totient is φ = 74820240000.

The previous prime is 108666499631. The next prime is 108666499649. The reversal of 108666499645 is 546994666801.

It is not a de Polignac number, because 108666499645 - 2²⁷ = 108532281917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108666499649) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27022735 + ... + 27026755.

It is an arithmetic number, because the mean of its divisors is an integer number (3145364880).

Almost surely, 2^108666499645 is an apocalyptic number.

It is an amenable number.

108666499645 is a deficient number, since it is larger than the sum of its proper divisors (42311014595).

108666499645 is a wasteful number, since it uses less digits than its factorization.

108666499645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6418 (or 6407 counting only the distinct ones).

The product of its (nonzero) digits is 67184640, while the sum is 64.

The spelling of 108666499645 in words is "one hundred eight billion, six hundred sixty-six million, four hundred ninety-nine thousand, six hundred forty-five".