83511664 has 20 divisors (see below), whose sum is σ = 166178104. Its totient is φ = 40627008.

The previous prime is 83511653. The next prime is 83511683. The reversal of 83511664 is 46611538.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69942 + ... + 71125.

Almost surely, 2^83511664 is an apocalyptic number.

It is an amenable number.

83511664 is a deficient number, since it is larger than the sum of its proper divisors (82666440).

83511664 is a wasteful number, since it uses less digits than its factorization.

83511664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141112 (or 141106 counting only the distinct ones).

The product of its digits is 17280, while the sum is 34.

The square root of 83511664 is about 9138.4716446461. The cubic root of 83511664 is about 437.1015827537.

The spelling of 83511664 in words is "eighty-three million, five hundred eleven thousand, six hundred sixty-four".