83415666 has 8 divisors (see below), whose sum is σ = 166831344. Its totient is φ = 27805220.

The previous prime is 83415659. The next prime is 83415667. The reversal of 83415666 is 66651438.

It is a sphenic number, since it is the product of 3 distinct primes.

83415666 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (83415667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6951300 + ... + 6951311.

It is an arithmetic number, because the mean of its divisors is an integer number (20853918).

Almost surely, 2^83415666 is an apocalyptic number.

83415666 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

83415666 is a wasteful number, since it uses less digits than its factorization.

83415666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13902616.

The product of its digits is 103680, while the sum is 39.

The square root of 83415666 is about 9133.2177243291. The cubic root of 83415666 is about 436.9340334389.

The spelling of 83415666 in words is "eighty-three million, four hundred fifteen thousand, six hundred sixty-six".