641656150 has 24 divisors (see below), whose sum is σ = 1222593624. Its totient is φ = 250401600.

The previous prime is 641656129. The next prime is 641656193. The reversal of 641656150 is 51656146.

It is a happy number.

It is a super-2 number, since 2×641656150² = 823445229665645000, 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 (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 154452 + ... + 158551.

It is an arithmetic number, because the mean of its divisors is an integer number (50941401).

Almost surely, 2^641656150 is an apocalyptic number.

641656150 is a deficient number, since it is larger than the sum of its proper divisors (580937474).

641656150 is a wasteful number, since it uses less digits than its factorization.

641656150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313056 (or 313051 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 641656150 is about 25330.9326713408. The cubic root of 641656150 is about 862.5165830320.

The spelling of 641656150 in words is "six hundred forty-one million, six hundred fifty-six thousand, one hundred fifty".