68080660 has 12 divisors (see below), whose sum is σ = 142969428. Its totient is φ = 27232256.

The previous prime is 68080657. The next prime is 68080669. The reversal of 68080660 is 6608086.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15256836 + 52823824 = 3906^2 + 7268^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68080669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1701997 + ... + 1702036.

It is an arithmetic number, because the mean of its divisors is an integer number (11914119).

Almost surely, 2^68080660 is an apocalyptic number.

It is an amenable number.

68080660 is an abundant number, since it is smaller than the sum of its proper divisors (74888768).

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

68080660 is a wasteful number, since it uses less digits than its factorization.

68080660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3404042 (or 3404040 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 68080660 is about 8251.1005326562. The cubic root of 68080660 is about 408.3268318646.

The spelling of 68080660 in words is "sixty-eight million, eighty thousand, six hundred sixty".