641105136572 has 6 divisors (see below), whose sum is σ = 1121933989008. Its totient is φ = 320552568284.

The previous prime is 641105136563. The next prime is 641105136619. The reversal of 641105136572 is 275631501146.

It is a happy number.

It is a super-2 number, since 2×641105136572² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80138142068 + ... + 80138142075.

It is an arithmetic number, because the mean of its divisors is an integer number (186988998168).

Almost surely, 2^641105136572 is an apocalyptic number.

It is an amenable number.

641105136572 is a deficient number, since it is larger than the sum of its proper divisors (480828852436).

641105136572 is a wasteful number, since it uses less digits than its factorization.

641105136572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160276284147 (or 160276284145 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 41.

The spelling of 641105136572 in words is "six hundred forty-one billion, one hundred five million, one hundred thirty-six thousand, five hundred seventy-two".