641454055600 has 60 divisors (see below), whose sum is σ = 1541227621240. Its totient is φ = 256559270400.

The previous prime is 641454055513. The next prime is 641454055609. The reversal of 641454055600 is 6550454146.

It is a super-2 number, since 2×641454055600² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (641454055609) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4984060 + ... + 5111140.

Almost surely, 2^641454055600 is an apocalyptic number.

It is an amenable number.

641454055600 is an abundant number, since it is smaller than the sum of its proper divisors (899773565640).

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

641454055600 is a wasteful number, since it uses less digits than its factorization.

641454055600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139718 (or 139707 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 40.

The spelling of 641454055600 in words is "six hundred forty-one billion, four hundred fifty-four million, fifty-five thousand, six hundred".