641660760360 has 96 divisors (see below), whose sum is σ = 2105644170240. Its totient is φ = 169448268672.

The previous prime is 641660760271. The next prime is 641660760371. The reversal of 641660760360 is 63067066146.

641660760360 is a `hidden beast` number, since 6 + 4 + 1 + 6 + 607 + 6 + 0 + 36 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8615304 + ... + 8689463.

It is an arithmetic number, because the mean of its divisors is an integer number (21933793440).

Almost surely, 2^641660760360 is an apocalyptic number.

641660760360 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

641660760360 is an abundant number, since it is smaller than the sum of its proper divisors (1463983409880).

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

641660760360 is a wasteful number, since it uses less digits than its factorization.

641660760360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17304887 (or 17304880 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 45.

The spelling of 641660760360 in words is "six hundred forty-one billion, six hundred sixty million, seven hundred sixty thousand, three hundred sixty".