60666556 has 12 divisors (see below), whose sum is σ = 108169992. Its totient is φ = 29760848.

The previous prime is 60666533. The next prime is 60666581. The reversal of 60666556 is 65566606.

It is a happy number.

It is a super-2 number, since 2×60666556² = 7360862033802272, which contains 22 as substring.

It is a congruent number.

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, 142870 + ... + 143293.

It is an arithmetic number, because the mean of its divisors is an integer number (9014166).

Almost surely, 2^60666556 is an apocalyptic number.

It is an amenable number.

60666556 is a deficient number, since it is larger than the sum of its proper divisors (47503436).

60666556 is a wasteful number, since it uses less digits than its factorization.

60666556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286220 (or 286218 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 40.

The square root of 60666556 is about 7788.8738595512. The cubic root of 60666556 is about 392.9311388866.

The spelling of 60666556 in words is "sixty million, six hundred sixty-six thousand, five hundred fifty-six".