60664860 has 72 divisors (see below), whose sum is σ = 187518240. Its totient is φ = 15869568.

The previous prime is 60664843. The next prime is 60664883. The reversal of 60664860 is 6846606.

60664860 is a `hidden beast` number, since 6 + 0 + 6 + 648 + 6 + 0 = 666.

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 23 ways as a sum of consecutive naturals, for example, 6361 + ... + 12719.

It is an arithmetic number, because the mean of its divisors is an integer number (2604420).

Almost surely, 2^60664860 is an apocalyptic number.

60664860 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 60664860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93759120).

60664860 is an abundant number, since it is smaller than the sum of its proper divisors (126853380).

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

60664860 is a wasteful number, since it uses less digits than its factorization.

60664860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6427 (or 6422 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 60664860 is about 7788.7649855417. The cubic root of 60664860 is about 392.9274772457.

The spelling of 60664860 in words is "sixty million, six hundred sixty-four thousand, eight hundred sixty".