641152633536 has 84 divisors (see below), whose sum is σ = 1838084372592. Its totient is φ = 213678457344.

The previous prime is 641152633423. The next prime is 641152633657. The reversal of 641152633536 is 635336251146.

641152633536 is a `hidden beast` number, since 6 + 4 + 1 + 1 + 5 + 2 + 633 + 5 + 3 + 6 = 666.

It is a super-2 number, since 2×641152633536² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 641152633491 and 641152633500.

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, 3139870 + ... + 3337826.

Almost surely, 2^641152633536 is an apocalyptic number.

It is an amenable number.

641152633536 is an abundant number, since it is smaller than the sum of its proper divisors (1196931739056).

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

641152633536 is a wasteful number, since it uses less digits than its factorization.

641152633536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203598 (or 203585 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 45.

The spelling of 641152633536 in words is "six hundred forty-one billion, one hundred fifty-two million, six hundred thirty-three thousand, five hundred thirty-six".