612675666 has 24 divisors (see below), whose sum is σ = 1334421504. Its totient is φ = 203154840.

The previous prime is 612675659. The next prime is 612675667. The reversal of 612675666 is 666576216.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (612675667) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85666 + ... + 92541.

It is an arithmetic number, because the mean of its divisors is an integer number (55600896).

Almost surely, 2^612675666 is an apocalyptic number.

612675666 is an abundant number, since it is smaller than the sum of its proper divisors (721745838).

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

612675666 is a wasteful number, since it uses less digits than its factorization.

612675666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178406 (or 178403 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 612675666 is about 24752.2860762395. The cubic root of 612675666 is about 849.3308070869.

The spelling of 612675666 in words is "six hundred twelve million, six hundred seventy-five thousand, six hundred sixty-six".