66674033670688 has 48 divisors (see below), whose sum is σ = 133781162457600. Its totient is φ = 32698241395456.

The previous prime is 66674033670683. The next prime is 66674033670691. The reversal of 66674033670688 is 88607633047666.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (66674033670683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196288 + ... + 11549311.

It is an arithmetic number, because the mean of its divisors is an integer number (2787107551200).

Almost surely, 2^{66674033670688} is an apocalyptic number.

It is an amenable number.

66674033670688 is an abundant number, since it is smaller than the sum of its proper divisors (67107128786912).

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

66674033670688 is a wasteful number, since it uses less digits than its factorization.

66674033670688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11749009 (or 11749001 counting only the distinct ones).

The product of its (nonzero) digits is 877879296, while the sum is 70.

The spelling of 66674033670688 in words is "sixty-six trillion, six hundred seventy-four billion, thirty-three million, six hundred seventy thousand, six hundred eighty-eight".