641504160045 has 192 divisors, whose sum is σ = 1375423096320. Its totient is φ = 280628748288.

The previous prime is 641504160023. The next prime is 641504160047. The reversal of 641504160045 is 540061405146.

641504160045 is a `hidden beast` number, since 6 + 4 + 1 + 5 + 0 + 4 + 1 + 600 + 45 = 666.

It is not a de Polignac number, because 641504160045 - 2⁶ = 641504159981 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 641504159991 and 641504160009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641504160047) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 27859377 + ... + 27882393.

It is an arithmetic number, because the mean of its divisors is an integer number (7163661960).

Almost surely, 2^641504160045 is an apocalyptic number.

It is an amenable number.

641504160045 is an abundant number, since it is smaller than the sum of its proper divisors (733918936275).

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

641504160045 is a wasteful number, since it uses less digits than its factorization.

641504160045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23186 (or 23174 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The spelling of 641504160045 in words is "six hundred forty-one billion, five hundred four million, one hundred sixty thousand, forty-five".