83955610881 has 12 divisors (see below), whose sum is σ = 124089430608. Its totient is φ = 54668769624.

The previous prime is 83955610877. The next prime is 83955610883. The reversal of 83955610881 is 18801655938.

83955610881 is a `hidden beast` number, since 8 + 3 + 9 + 556 + 1 + 0 + 8 + 81 = 666.

It is not a de Polignac number, because 83955610881 - 2² = 83955610877 is a prime.

It is a super-2 number, since 2×83955610881² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (83955610883) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 108469395 + ... + 108470168.

It is an arithmetic number, because the mean of its divisors is an integer number (10340785884).

Almost surely, 2^83955610881 is an apocalyptic number.

It is an amenable number.

83955610881 is a deficient number, since it is larger than the sum of its proper divisors (40133819727).

83955610881 is a wasteful number, since it uses less digits than its factorization.

83955610881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216939612 (or 216939609 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 54.

The spelling of 83955610881 in words is "eighty-three billion, nine hundred fifty-five million, six hundred ten thousand, eight hundred eighty-one".