641102308704 has 384 divisors, whose sum is σ = 2326014351360. Its totient is φ = 168779980800.

The previous prime is 641102308681. The next prime is 641102308709. The reversal of 641102308704 is 407803201146.

641102308704 is a `hidden beast` number, since 6 + 411 + 0 + 230 + 8 + 7 + 0 + 4 = 666.

It is a super-2 number, since 2×641102308704² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641102308709) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 1947769 + ... + 2252999.

It is an arithmetic number, because the mean of its divisors is an integer number (6057329040).

Almost surely, 2^641102308704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 641102308704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1163007175680).

641102308704 is an abundant number, since it is smaller than the sum of its proper divisors (1684912042656).

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

641102308704 is a wasteful number, since it uses less digits than its factorization.

641102308704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305291 (or 305277 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The spelling of 641102308704 in words is "six hundred forty-one billion, one hundred two million, three hundred eight thousand, seven hundred four".