66524164 has 24 divisors (see below), whose sum is σ = 135766400. Its totient is φ = 28509768.

The previous prime is 66524153. The next prime is 66524191. The reversal of 66524164 is 46142566.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22872 + ... + 25615.

Almost surely, 2^66524164 is an apocalyptic number.

It is an amenable number.

66524164 is an abundant number, since it is smaller than the sum of its proper divisors (69242236).

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

66524164 is a wasteful number, since it uses less digits than its factorization.

66524164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48512 (or 48496 counting only the distinct ones).

The product of its digits is 34560, while the sum is 34.

The square root of 66524164 is about 8156.2346704837. The cubic root of 66524164 is about 405.1910169400.

It can be divided in two parts, 6652 and 4164, that added together give a square (10816 = 104²).

The spelling of 66524164 in words is "sixty-six million, five hundred twenty-four thousand, one hundred sixty-four".