641146545960 has 64 divisors (see below), whose sum is σ = 1923952409280. Its totient is φ = 170926832640.

The previous prime is 641146545889. The next prime is 641146545979. The reversal of 641146545960 is 69545641146.

It is a super-2 number, since 2×641146545960² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 258982 + ... + 1161621.

It is an arithmetic number, because the mean of its divisors is an integer number (30061756395).

Almost surely, 2^641146545960 is an apocalyptic number.

641146545960 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

641146545960 is an abundant number, since it is smaller than the sum of its proper divisors (1282805863320).

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

641146545960 is a wasteful number, since it uses less digits than its factorization.

641146545960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1424378 (or 1424374 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 51.

The spelling of 641146545960 in words is "six hundred forty-one billion, one hundred forty-six million, five hundred forty-five thousand, nine hundred sixty".