66369372 has 12 divisors (see below), whose sum is σ = 154861896. Its totient is φ = 22123120.

The previous prime is 66369361. The next prime is 66369383. The reversal of 66369372 is 27396366.

It is an interprime number because it is at equal distance from previous prime (66369361) and next prime (66369383).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2765379 + ... + 2765402.

It is an arithmetic number, because the mean of its divisors is an integer number (12905158).

Almost surely, 2^66369372 is an apocalyptic number.

It is an amenable number.

66369372 is an abundant number, since it is smaller than the sum of its proper divisors (88492524).

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

66369372 is a wasteful number, since it uses less digits than its factorization.

66369372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5530788 (or 5530786 counting only the distinct ones).

The product of its digits is 244944, while the sum is 42.

The square root of 66369372 is about 8146.7399614815. The cubic root of 66369372 is about 404.8764994569.

The spelling of 66369372 in words is "sixty-six million, three hundred sixty-nine thousand, three hundred seventy-two".