108197877665 has 8 divisors (see below), whose sum is σ = 130068073728. Its totient is φ = 86404555120.

The previous prime is 108197877637. The next prime is 108197877709. The reversal of 108197877665 is 566778791801.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 108197877665 - 2¹² = 108197873569 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19215281 + ... + 19220910.

It is an arithmetic number, because the mean of its divisors is an integer number (16258509216).

Almost surely, 2^108197877665 is an apocalyptic number.

It is an amenable number.

108197877665 is a deficient number, since it is larger than the sum of its proper divisors (21870196063).

108197877665 is an equidigital number, since it uses as much as digits as its factorization.

108197877665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38436759.

The product of its (nonzero) digits is 35562240, while the sum is 65.

The spelling of 108197877665 in words is "one hundred eight billion, one hundred ninety-seven million, eight hundred seventy-seven thousand, six hundred sixty-five".