83556667623 has 64 divisors (see below), whose sum is σ = 135777761280. Its totient is φ = 45026841600.

The previous prime is 83556667613. The next prime is 83556667643. The reversal of 83556667623 is 32676665538.

It is a happy number.

It is not a de Polignac number, because 83556667623 - 2⁵ = 83556667591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83556667603) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1359465 + ... + 1419597.

It is an arithmetic number, because the mean of its divisors is an integer number (2121527520).

Almost surely, 2^83556667623 is an apocalyptic number.

83556667623 is a deficient number, since it is larger than the sum of its proper divisors (52221093657).

83556667623 is a wasteful number, since it uses less digits than its factorization.

83556667623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60280.

The product of its digits is 32659200, while the sum is 57.

The spelling of 83556667623 in words is "eighty-three billion, five hundred fifty-six million, six hundred sixty-seven thousand, six hundred twenty-three".