83668616 has 16 divisors (see below), whose sum is σ = 158115840. Its totient is φ = 41504400.

The previous prime is 83668579. The next prime is 83668643. The reversal of 83668616 is 61686638.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40160 + ... + 42191.

It is an arithmetic number, because the mean of its divisors is an integer number (9882240).

Almost surely, 2^83668616 is an apocalyptic number.

It is an amenable number.

83668616 is a deficient number, since it is larger than the sum of its proper divisors (74447224).

83668616 is a wasteful number, since it uses less digits than its factorization.

83668616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82484 (or 82480 counting only the distinct ones).

The product of its digits is 248832, while the sum is 44.

The square root of 83668616 is about 9147.0550452044. The cubic root of 83668616 is about 437.3752412704.

The spelling of 83668616 in words is "eighty-three million, six hundred sixty-eight thousand, six hundred sixteen".