76840100165 has 4 divisors (see below), whose sum is σ = 92208120204. Its totient is φ = 61472080128.

The previous prime is 76840100111. The next prime is 76840100177. The reversal of 76840100165 is 56100104867.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56100104867 = 1151 ⋅48740317.

It can be written as a sum of positive squares in 2 ways, for example, as 42848172004 + 33991928161 = 206998^2 + 184369^2 .

It is a cyclic number.

It is not a de Polignac number, because 76840100165 - 2²⁶ = 76772991301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7684010012 + ... + 7684010021.

It is an arithmetic number, because the mean of its divisors is an integer number (23052030051).

Almost surely, 2^76840100165 is an apocalyptic number.

It is an amenable number.

76840100165 is a deficient number, since it is larger than the sum of its proper divisors (15368020039).

76840100165 is a wasteful number, since it uses less digits than its factorization.

76840100165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15368020038.

The product of its (nonzero) digits is 40320, while the sum is 38.

The spelling of 76840100165 in words is "seventy-six billion, eight hundred forty million, one hundred thousand, one hundred sixty-five".