666683337 has 16 divisors (see below), whose sum is σ = 899377920. Its totient is φ = 439251792.

The previous prime is 666683333. The next prime is 666683341. The reversal of 666683337 is 733386666.

It is an interprime number because it is at equal distance from previous prime (666683333) and next prime (666683341).

It is not a de Polignac number, because 666683337 - 2² = 666683333 is a prime.

It is not an unprimeable number, because it can be changed into a prime (666683333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91138 + ... + 98180.

It is an arithmetic number, because the mean of its divisors is an integer number (56211120).

Almost surely, 2^666683337 is an apocalyptic number.

It is an amenable number.

666683337 is a deficient number, since it is larger than the sum of its proper divisors (232694583).

666683337 is a wasteful number, since it uses less digits than its factorization.

666683337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7412.

The product of its digits is 1959552, while the sum is 48.

The square root of 666683337 is about 25820.2117923149. The cubic root of 666683337 is about 873.5877461144.

The spelling of 666683337 in words is "six hundred sixty-six million, six hundred eighty-three thousand, three hundred thirty-seven".