641264402150 has 48 divisors (see below), whose sum is σ = 1219155879744. Its totient is φ = 250836660480.

The previous prime is 641264402143. The next prime is 641264402161. The reversal of 641264402150 is 51204462146.

It is a super-2 number, since 2×641264402150² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 641264402150.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2689184 + ... + 2917916.

It is an arithmetic number, because the mean of its divisors is an integer number (25399080828).

Almost surely, 2^641264402150 is an apocalyptic number.

641264402150 is a deficient number, since it is larger than the sum of its proper divisors (577891477594).

641264402150 is a wasteful number, since it uses less digits than its factorization.

641264402150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229985 (or 229980 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 35.

Adding to 641264402150 its reverse (51204462146), we get a palindrome (692468864296).

The spelling of 641264402150 in words is "six hundred forty-one billion, two hundred sixty-four million, four hundred two thousand, one hundred fifty".