66060564 has 24 divisors (see below), whose sum is σ = 154351680. Its totient is φ = 21990144.

The previous prime is 66060563. The next prime is 66060583. The reversal of 66060564 is 46506066.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66060563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6532 + ... + 13220.

It is an arithmetic number, because the mean of its divisors is an integer number (6431320).

Almost surely, 2^66060564 is an apocalyptic number.

It is an amenable number.

66060564 is an abundant number, since it is smaller than the sum of its proper divisors (88291116).

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

66060564 is a wasteful number, since it uses less digits than its factorization.

66060564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7519 (or 7517 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 66060564 is about 8127.7650064455. The cubic root of 66060564 is about 404.2475772308.

The spelling of 66060564 in words is "sixty-six million, sixty thousand, five hundred sixty-four".