66524488 has 8 divisors (see below), whose sum is σ = 124733430. Its totient is φ = 33262240.

The previous prime is 66524473. The next prime is 66524503. The reversal of 66524488 is 88442566.

It is an interprime number because it is at equal distance from previous prime (66524473) and next prime (66524503).

It can be written as a sum of positive squares in only one way, i.e., 66292164 + 232324 = 8142^2 + 482^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4157773 + ... + 4157788.

Almost surely, 2^66524488 is an apocalyptic number.

It is an amenable number.

66524488 is a deficient number, since it is larger than the sum of its proper divisors (58208942).

66524488 is a wasteful number, since it uses less digits than its factorization.

66524488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8315567 (or 8315563 counting only the distinct ones).

The product of its digits is 368640, while the sum is 43.

The square root of 66524488 is about 8156.2545325658. The cubic root of 66524488 is about 405.1916747545.

The spelling of 66524488 in words is "sixty-six million, five hundred twenty-four thousand, four hundred eighty-eight".