78801745165 has 16 divisors (see below), whose sum is σ = 111093929856. Its totient is φ = 52901870400.

The previous prime is 78801745133. The next prime is 78801745207. The reversal of 78801745165 is 56154710887.

It is not a de Polignac number, because 78801745165 - 2⁵ = 78801745133 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55105401 + ... + 55106830.

It is an arithmetic number, because the mean of its divisors is an integer number (6943370616).

Almost surely, 2^78801745165 is an apocalyptic number.

It is an amenable number.

78801745165 is a deficient number, since it is larger than the sum of its proper divisors (32292184691).

78801745165 is a wasteful number, since it uses less digits than its factorization.

78801745165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110212260.

The product of its (nonzero) digits is 1881600, while the sum is 52.

The spelling of 78801745165 in words is "seventy-eight billion, eight hundred one million, seven hundred forty-five thousand, one hundred sixty-five".