83131331355 has 48 divisors (see below), whose sum is σ = 152649136224. Its totient is φ = 41707146240.

The previous prime is 83131331341. The next prime is 83131331359. The reversal of 83131331355 is 55313313138.

83131331355 is a `hidden beast` number, since 8 + 313 + 1 + 331 + 3 + 5 + 5 = 666.

It is not a de Polignac number, because 83131331355 - 2⁸ = 83131331099 is a prime.

It is a super-2 number, since 2×83131331355² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (83131331359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1511397 + ... + 1565433.

It is an arithmetic number, because the mean of its divisors is an integer number (3180190338).

Almost surely, 2^83131331355 is an apocalyptic number.

83131331355 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

83131331355 is a deficient number, since it is larger than the sum of its proper divisors (69517804869).

83131331355 is a wasteful number, since it uses less digits than its factorization.

83131331355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56076 (or 56073 counting only the distinct ones).

The product of its digits is 48600, while the sum is 36.

The spelling of 83131331355 in words is "eighty-three billion, one hundred thirty-one million, three hundred thirty-one thousand, three hundred fifty-five".