66085524 has 24 divisors (see below), whose sum is σ = 171333120. Its totient is φ = 22028472.

The previous prime is 66085493. The next prime is 66085531. The reversal of 66085524 is 42558066.

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

It is a congruent number.

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, 305844 + ... + 306059.

It is an arithmetic number, because the mean of its divisors is an integer number (7138880).

Almost surely, 2^66085524 is an apocalyptic number.

It is an amenable number.

66085524 is an abundant number, since it is smaller than the sum of its proper divisors (105247596).

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

66085524 is a wasteful number, since it uses less digits than its factorization.

66085524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611916 (or 611908 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 66085524 is about 8129.3003388976. The cubic root of 66085524 is about 404.2984837949.

The spelling of 66085524 in words is "sixty-six million, eighty-five thousand, five hundred twenty-four".