66768104 has 32 divisors (see below), whose sum is σ = 135240840. Its totient is φ = 30720000.

The previous prime is 66768089. The next prime is 66768137. The reversal of 66768104 is 40186766.

It can be written as a sum of positive squares in 4 ways, for example, as 65772100 + 996004 = 8110^2 + 998^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40904 + ... + 42504.

Almost surely, 2^66768104 is an apocalyptic number.

It is an amenable number.

66768104 is an abundant number, since it is smaller than the sum of its proper divisors (68472736).

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

66768104 is a wasteful number, since it uses less digits than its factorization.

66768104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2021 (or 2017 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 66768104 is about 8171.1751908768. The cubic root of 66768104 is about 405.6856829384.

The spelling of 66768104 in words is "sixty-six million, seven hundred sixty-eight thousand, one hundred four".