641458116 has 60 divisors (see below), whose sum is σ = 1805902252. Its totient is φ = 197370432.

The previous prime is 641458073. The next prime is 641458123. The reversal of 641458116 is 611854146.

641458116 is a `hidden beast` number, since 64 + 1 + 4 + 581 + 16 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 286286400 + 355171716 = 16920^2 + 18846^2 .

It is a super-2 number, since 2×641458116² = 822937029164538912, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 71935 + ... + 80358.

Almost surely, 2^641458116 is an apocalyptic number.

It is an amenable number.

641458116 is an abundant number, since it is smaller than the sum of its proper divisors (1164444136).

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

641458116 is a wasteful number, since it uses less digits than its factorization.

641458116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152322 (or 152311 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 641458116 is about 25327.0234334791. The cubic root of 641458116 is about 862.4278412222.

The spelling of 641458116 in words is "six hundred forty-one million, four hundred fifty-eight thousand, one hundred sixteen".