642633106152 has 32 divisors (see below), whose sum is σ = 1625939189280. Its totient is φ = 211630178880.

The previous prime is 642633106127. The next prime is 642633106217. The reversal of 642633106152 is 251601336246.

It is a self number, because there is not a number n which added to its sum of digits gives 642633106152.

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, 161301499 + ... + 161305482.

It is an arithmetic number, because the mean of its divisors is an integer number (50810599665).

Almost surely, 2^642633106152 is an apocalyptic number.

It is an amenable number.

642633106152 is an abundant number, since it is smaller than the sum of its proper divisors (983306083128).

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

642633106152 is a wasteful number, since it uses less digits than its factorization.

642633106152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322607073 (or 322607069 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 39.

The spelling of 642633106152 in words is "six hundred forty-two billion, six hundred thirty-three million, one hundred six thousand, one hundred fifty-two".