108497165491 has 16 divisors (see below), whose sum is σ = 128593231200. Its totient is φ = 90240837120.

The previous prime is 108497165471. The next prime is 108497165561. The reversal of 108497165491 is 194561794801.

It is a cyclic number.

It is not a de Polignac number, because 108497165491 - 2⁵ = 108497165459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108497165431) 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, 3341016 + ... + 3373333.

It is an arithmetic number, because the mean of its divisors is an integer number (8037076950).

Almost surely, 2^108497165491 is an apocalyptic number.

108497165491 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

108497165491 is a deficient number, since it is larger than the sum of its proper divisors (20096065709).

108497165491 is a wasteful number, since it uses less digits than its factorization.

108497165491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6714486.

The product of its (nonzero) digits is 2177280, while the sum is 55.

The spelling of 108497165491 in words is "one hundred eight billion, four hundred ninety-seven million, one hundred sixty-five thousand, four hundred ninety-one".