83151816 has 64 divisors (see below), whose sum is σ = 234619200. Its totient is φ = 24326400.

The previous prime is 83151791. The next prime is 83151823. The reversal of 83151816 is 61815138.

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 2226 + ... + 13086.

It is an arithmetic number, because the mean of its divisors is an integer number (3665925).

Almost surely, 2^83151816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83151816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117309600).

83151816 is an abundant number, since it is smaller than the sum of its proper divisors (151467384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83151816 is a wasteful number, since it uses less digits than its factorization.

83151816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10910 (or 10906 counting only the distinct ones).

The product of its digits is 5760, while the sum is 33.

The square root of 83151816 is about 9118.7617580459. The cubic root of 83151816 is about 436.4728618307.

The spelling of 83151816 in words is "eighty-three million, one hundred fifty-one thousand, eight hundred sixteen".