83516619881 has 8 divisors (see below), whose sum is σ = 83618755584. Its totient is φ = 83414525040.

The previous prime is 83516619877. The next prime is 83516619883. The reversal of 83516619881 is 18891661538.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 83516619881 - 2² = 83516619877 is a prime.

It is a super-2 number, since 2×83516619881² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83516619883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6345950 + ... + 6359096.

It is an arithmetic number, because the mean of its divisors is an integer number (10452344448).

Almost surely, 2^83516619881 is an apocalyptic number.

It is an amenable number.

83516619881 is a deficient number, since it is larger than the sum of its proper divisors (102135703).

83516619881 is a wasteful number, since it uses less digits than its factorization.

83516619881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20431.

The product of its digits is 2488320, while the sum is 56.

The spelling of 83516619881 in words is "eighty-three billion, five hundred sixteen million, six hundred nineteen thousand, eight hundred eighty-one".