641100133512 has 48 divisors (see below), whose sum is σ = 1736360262000. Its totient is φ = 213694210656.

The previous prime is 641100133403. The next prime is 641100133547. The reversal of 641100133512 is 215331001146.

It is a happy number.

641100133512 is a `hidden beast` number, since 6 + 4 + 1 + 10 + 0 + 133 + 512 = 666.

It is a super-2 number, since 2×641100133512² (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 11 ways as a sum of consecutive naturals, for example, 3136539 + ... + 3334677.

It is an arithmetic number, because the mean of its divisors is an integer number (36174172125).

Almost surely, 2^641100133512 is an apocalyptic number.

It is an amenable number.

641100133512 is an abundant number, since it is smaller than the sum of its proper divisors (1095260128488).

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

641100133512 is a wasteful number, since it uses less digits than its factorization.

641100133512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243090 (or 243083 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

Adding to 641100133512 its reverse (215331001146), we get a palindrome (856431134658).

The spelling of 641100133512 in words is "six hundred forty-one billion, one hundred million, one hundred thirty-three thousand, five hundred twelve".