66367625240 has 32 divisors (see below), whose sum is σ = 170659608480. Its totient is φ = 22754614272.

The previous prime is 66367625239. The next prime is 66367625281. The reversal of 66367625240 is 4252676366.

66367625240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 118513337 + ... + 118513896.

It is an arithmetic number, because the mean of its divisors is an integer number (5333112765).

Almost surely, 2^66367625240 is an apocalyptic number.

It is an amenable number.

66367625240 is an abundant number, since it is smaller than the sum of its proper divisors (104291983240).

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

66367625240 is a wasteful number, since it uses less digits than its factorization.

66367625240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237027251 (or 237027247 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 47.

The spelling of 66367625240 in words is "sixty-six billion, three hundred sixty-seven million, six hundred twenty-five thousand, two hundred forty".