66674112160 has 24 divisors (see below), whose sum is σ = 157517590356. Its totient is φ = 26669644800.

The previous prime is 66674112119. The next prime is 66674112161. The reversal of 66674112160 is 6121147666.

It can be written as a sum of positive squares in 2 ways, for example, as 65047441936 + 1626670224 = 255044^2 + 40332^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (66674112161) 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, 208356441 + ... + 208356760.

Almost surely, 2^66674112160 is an apocalyptic number.

It is an amenable number.

66674112160 is an abundant number, since it is smaller than the sum of its proper divisors (90843478196).

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

66674112160 is a wasteful number, since it uses less digits than its factorization.

66674112160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416713216 (or 416713208 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The spelling of 66674112160 in words is "sixty-six billion, six hundred seventy-four million, one hundred twelve thousand, one hundred sixty".