83312666 has 4 divisors (see below), whose sum is σ = 124969002. Its totient is φ = 41656332.

The previous prime is 83312659. The next prime is 83312707. The reversal of 83312666 is 66621338.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 83083225 + 229441 = 9115^2 + 479^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20828165 + ... + 20828168.

Almost surely, 2^83312666 is an apocalyptic number.

83312666 is a deficient number, since it is larger than the sum of its proper divisors (41656336).

83312666 is a wasteful number, since it uses less digits than its factorization.

83312666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41656335.

The product of its digits is 31104, while the sum is 35.

The square root of 83312666 is about 9127.5772250910. The cubic root of 83312666 is about 436.7541202253.

The spelling of 83312666 in words is "eighty-three million, three hundred twelve thousand, six hundred sixty-six".