665674124 has 12 divisors (see below), whose sum is σ = 1165167864. Its totient is φ = 332769024.

The previous prime is 665674123. The next prime is 665674147. The reversal of 665674124 is 421476566.

It is a happy number.

665674124 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (665674123) 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, 9644 + ... + 37740.

It is an arithmetic number, because the mean of its divisors is an integer number (97097322).

Almost surely, 2^665674124 is an apocalyptic number.

It is an amenable number.

665674124 is a deficient number, since it is larger than the sum of its proper divisors (499493740).

665674124 is a wasteful number, since it uses less digits than its factorization.

665674124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34024 (or 34022 counting only the distinct ones).

The product of its digits is 241920, while the sum is 41.

The square root of 665674124 is about 25800.6613093541. The cubic root of 665674124 is about 873.1467164662.

The spelling of 665674124 in words is "six hundred sixty-five million, six hundred seventy-four thousand, one hundred twenty-four".