82611516 has 48 divisors (see below), whose sum is σ = 208972064. Its totient is φ = 25249536.

The previous prime is 82611509. The next prime is 82611523. The reversal of 82611516 is 61511628.

It is an interprime number because it is at equal distance from previous prime (82611509) and next prime (82611523).

It is a congruent number.

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, 22806 + ... + 26178.

Almost surely, 2^82611516 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 82611516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104486032).

82611516 is an abundant number, since it is smaller than the sum of its proper divisors (126360548).

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

82611516 is a wasteful number, since it uses less digits than its factorization.

82611516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3550 (or 3548 counting only the distinct ones).

The product of its digits is 2880, while the sum is 30.

The square root of 82611516 is about 9089.0877430026. The cubic root of 82611516 is about 435.5254424763.

The spelling of 82611516 in words is "eighty-two million, six hundred eleven thousand, five hundred sixteen".