83161233945 has 24 divisors (see below), whose sum is σ = 144152903232. Its totient is φ = 44350576800.

The previous prime is 83161233917. The next prime is 83161233971. The reversal of 83161233945 is 54933216138.

83161233945 is a `hidden beast` number, since 83 + 161 + 23 + 394 + 5 = 666.

It is not a de Polignac number, because 83161233945 - 2¹⁸ = 83160971801 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 83161233945.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1671580 + ... + 1720610.

It is an arithmetic number, because the mean of its divisors is an integer number (6006370968).

Almost surely, 2^83161233945 is an apocalyptic number.

It is an amenable number.

83161233945 is a deficient number, since it is larger than the sum of its proper divisors (60991669287).

83161233945 is a wasteful number, since it uses less digits than its factorization.

83161233945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86733 (or 86730 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The spelling of 83161233945 in words is "eighty-three billion, one hundred sixty-one million, two hundred thirty-three thousand, nine hundred forty-five".