641366802 has 32 divisors (see below), whose sum is σ = 1427025600. Its totient is φ = 213524064.

The previous prime is 641366797. The next prime is 641366827. The reversal of 641366802 is 208663146.

641366802 is a `hidden beast` number, since 641 + 3 + 6 + 6 + 8 + 0 + 2 = 666.

641366802 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×641366802² = 822702749415414408, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39349 + ... + 53207.

It is an arithmetic number, because the mean of its divisors is an integer number (44594550).

Almost surely, 2^641366802 is an apocalyptic number.

641366802 is an abundant number, since it is smaller than the sum of its proper divisors (785658798).

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

641366802 is a wasteful number, since it uses less digits than its factorization.

641366802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14727 (or 14721 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 641366802 is about 25325.2206703120. The cubic root of 641366802 is about 862.3869159868.

The spelling of 641366802 in words is "six hundred forty-one million, three hundred sixty-six thousand, eight hundred two".