83668566953 has 16 divisors (see below), whose sum is σ = 94176224640. Its totient is φ = 73863648000.

The previous prime is 83668566937. The next prime is 83668567001. The reversal of 83668566953 is 35966586638.

It is a cyclic number.

It is not a de Polignac number, because 83668566953 - 2⁴ = 83668566937 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 83668566953.

It is not an unprimeable number, because it can be changed into a prime (83668566853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1249733 + ... + 1314978.

It is an arithmetic number, because the mean of its divisors is an integer number (5886014040).

Almost surely, 2^83668566953 is an apocalyptic number.

It is an amenable number.

83668566953 is a deficient number, since it is larger than the sum of its proper divisors (10507657687).

83668566953 is a wasteful number, since it uses less digits than its factorization.

83668566953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2564848.

The product of its digits is 167961600, while the sum is 65.

The spelling of 83668566953 in words is "eighty-three billion, six hundred sixty-eight million, five hundred sixty-six thousand, nine hundred fifty-three".