632673361640 has 32 divisors (see below), whose sum is σ = 1429786075680. Its totient is φ = 251954498112.

The previous prime is 632673361631. The next prime is 632673361643. The reversal of 632673361640 is 46163376236.

632673361640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (632673361643) 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, 34829762 + ... + 34847921.

It is an arithmetic number, because the mean of its divisors is an integer number (44680814865).

Almost surely, 2^632673361640 is an apocalyptic number.

It is an amenable number.

632673361640 is an abundant number, since it is smaller than the sum of its proper divisors (797112714040).

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

632673361640 is a wasteful number, since it uses less digits than its factorization.

632673361640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69677921 (or 69677917 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 47.

The spelling of 632673361640 in words is "six hundred thirty-two billion, six hundred seventy-three million, three hundred sixty-one thousand, six hundred forty".