83878653885165 has 48 divisors (see below), whose sum is σ = 149535210579456. Its totient is φ = 43463229609600.

The previous prime is 83878653885137. The next prime is 83878653885217. The reversal of 83878653885165 is 56158835687838.

83878653885165 is a `hidden beast` number, since 8 + 3 + 8 + 7 + 8 + 65 + 38 + 8 + 516 + 5 = 666.

It is not a de Polignac number, because 83878653885165 - 2⁵ = 83878653885133 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 35302141 + ... + 37603170.

It is an arithmetic number, because the mean of its divisors is an integer number (3115316887072).

Almost surely, 2^{83878653885165} is an apocalyptic number.

It is an amenable number.

83878653885165 is a deficient number, since it is larger than the sum of its proper divisors (65656556694291).

83878653885165 is a wasteful number, since it uses less digits than its factorization.

83878653885165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72906050 (or 72906047 counting only the distinct ones).

The product of its digits is 9289728000, while the sum is 81.

The spelling of 83878653885165 in words is "eighty-three trillion, eight hundred seventy-eight billion, six hundred fifty-three million, eight hundred eighty-five thousand, one hundred sixty-five".