83330605666 has 64 divisors (see below), whose sum is σ = 159774759936. Its totient is φ = 31649486400.

The previous prime is 83330605651. The next prime is 83330605681. The reversal of 83330605666 is 66650603338.

It is an interprime number because it is at equal distance from previous prime (83330605651) and next prime (83330605681).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3451276 + ... + 3475336.

It is an arithmetic number, because the mean of its divisors is an integer number (2496480624).

Almost surely, 2^83330605666 is an apocalyptic number.

83330605666 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

83330605666 is a deficient number, since it is larger than the sum of its proper divisors (76444154270).

83330605666 is a wasteful number, since it uses less digits than its factorization.

83330605666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24647.

The product of its (nonzero) digits is 1399680, while the sum is 46.

The spelling of 83330605666 in words is "eighty-three billion, three hundred thirty million, six hundred five thousand, six hundred sixty-six".