641336056 has 32 divisors (see below), whose sum is σ = 1256682240. Its totient is φ = 306538848.

The previous prime is 641336039. The next prime is 641336107. The reversal of 641336056 is 650633146.

It is a super-2 number, since 2×641336056² = 822623873451270272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3666 + ... + 36001.

It is an arithmetic number, because the mean of its divisors is an integer number (39271320).

Almost surely, 2^641336056 is an apocalyptic number.

It is an amenable number.

641336056 is a deficient number, since it is larger than the sum of its proper divisors (615346184).

641336056 is a wasteful number, since it uses less digits than its factorization.

641336056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39763 (or 39759 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 641336056 is about 25324.6136396984. The cubic root of 641336056 is about 862.3731353277.

The spelling of 641336056 in words is "six hundred forty-one million, three hundred thirty-six thousand, fifty-six".