66369724 has 12 divisors (see below), whose sum is σ = 116235000. Its totient is φ = 33159728.

The previous prime is 66369707. The next prime is 66369733. The reversal of 66369724 is 42796366.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 462 + ... + 11530.

It is an arithmetic number, because the mean of its divisors is an integer number (9686250).

Almost surely, 2^66369724 is an apocalyptic number.

It is an amenable number.

66369724 is a deficient number, since it is larger than the sum of its proper divisors (49865276).

66369724 is a wasteful number, since it uses less digits than its factorization.

66369724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12572 (or 12570 counting only the distinct ones).

The product of its digits is 326592, while the sum is 43.

The square root of 66369724 is about 8146.7615651865. The cubic root of 66369724 is about 404.8772152302.

The spelling of 66369724 in words is "sixty-six million, three hundred sixty-nine thousand, seven hundred twenty-four".