640033670112 has 48 divisors (see below), whose sum is σ = 1687622469120. Its totient is φ = 212387847552.

The previous prime is 640033670083. The next prime is 640033670167. The reversal of 640033670112 is 211076330046.

It is a tau number, because it is divible by the number of its divisors (48).

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, 14927062 + ... + 14969877.

It is an arithmetic number, because the mean of its divisors is an integer number (35158801440).

Almost surely, 2^640033670112 is an apocalyptic number.

It is an amenable number.

640033670112 is an abundant number, since it is smaller than the sum of its proper divisors (1047588799008).

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

640033670112 is a wasteful number, since it uses less digits than its factorization.

640033670112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29897175 (or 29897167 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 33.

The spelling of 640033670112 in words is "six hundred forty billion, thirty-three million, six hundred seventy thousand, one hundred twelve".