66560552 has 16 divisors (see below), whose sum is σ = 124921440. Its totient is φ = 33248176.

The previous prime is 66560537. The next prime is 66560569. The reversal of 66560552 is 25506566.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6383 + ... + 13185.

It is an arithmetic number, because the mean of its divisors is an integer number (7807590).

Almost surely, 2^66560552 is an apocalyptic number.

It is an amenable number.

66560552 is a deficient number, since it is larger than the sum of its proper divisors (58360888).

66560552 is a wasteful number, since it uses less digits than its factorization.

66560552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8032 (or 8028 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 35.

The square root of 66560552 is about 8158.4650517116. The cubic root of 66560552 is about 405.2648818455.

The spelling of 66560552 in words is "sixty-six million, five hundred sixty thousand, five hundred fifty-two".