83656155165638 has 32 divisors (see below), whose sum is σ = 137975385858048. Its totient is φ = 37724578416000.

The previous prime is 83656155165599. The next prime is 83656155165647.

It is a happy number.

83656155165638 is nontrivially palindromic in base 10.

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, 69609038 + ... + 70800638.

It is an arithmetic number, because the mean of its divisors is an integer number (4311730808064).

Almost surely, 2^{83656155165638} is an apocalyptic number.

83656155165638 is a deficient number, since it is larger than the sum of its proper divisors (54319230692410).

83656155165638 is a wasteful number, since it uses less digits than its factorization.

83656155165638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1216868.

The product of its digits is 466560000, while the sum is 68.

The spelling of 83656155165638 in words is "eighty-three trillion, six hundred fifty-six billion, one hundred fifty-five million, one hundred sixty-five thousand, six hundred thirty-eight".