641750060 has 144 divisors (see below), whose sum is σ = 1631022624. Its totient is φ = 211341312.

The previous prime is 641750047. The next prime is 641750113. The reversal of 641750060 is 60057146.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4087502 + ... + 4087658.

It is an arithmetic number, because the mean of its divisors is an integer number (11326546).

Almost surely, 2^641750060 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 641750060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (815511312).

641750060 is an abundant number, since it is smaller than the sum of its proper divisors (989272564).

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

641750060 is a wasteful number, since it uses less digits than its factorization.

641750060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320 (or 311 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 641750060 is about 25332.7862660229. The cubic root of 641750060 is about 862.5586590365.

The spelling of 641750060 in words is "six hundred forty-one million, seven hundred fifty thousand, sixty".