641150064 has 30 divisors (see below), whose sum is σ = 1794330096. Its totient is φ = 213716640.

The previous prime is 641150057. The next prime is 641150161. The reversal of 641150064 is 460051146.

641150064 is a `hidden beast` number, since 641 + 15 + 0 + 0 + 6 + 4 = 666.

It is a super-2 number, since 2×641150064² = 822146809134408192, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2226072 + ... + 2226359.

Almost surely, 2^641150064 is an apocalyptic number.

It is an amenable number.

641150064 is an abundant number, since it is smaller than the sum of its proper divisors (1153180032).

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

641150064 is a wasteful number, since it uses less digits than its factorization.

641150064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4452445 (or 4452436 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 641150064 is about 25320.9412147337. The cubic root of 641150064 is about 862.2897624946.

The spelling of 641150064 in words is "six hundred forty-one million, one hundred fifty thousand, sixty-four".