66364524 has 36 divisors (see below), whose sum is σ = 168086464. Its totient is φ = 22077792.

The previous prime is 66364483. The next prime is 66364537. The reversal of 66364524 is 42546366.

66364524 is a `hidden beast` number, since 6 + 6 + 3 + 645 + 2 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20334 + ... + 23370.

Almost surely, 2^66364524 is an apocalyptic number.

It is an amenable number.

66364524 is an abundant number, since it is smaller than the sum of its proper divisors (101721940).

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

66364524 is a wasteful number, since it uses less digits than its factorization.

66364524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3654 (or 3649 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

The square root of 66364524 is about 8146.4424137166. The cubic root of 66364524 is about 404.8666410488.

The spelling of 66364524 in words is "sixty-six million, three hundred sixty-four thousand, five hundred twenty-four".