501604535610440 has 32 divisors (see below), whose sum is σ = 1128680468052480. Its totient is φ = 200629323056832.

The previous prime is 501604535610391. The next prime is 501604535610443. The reversal of 501604535610440 is 44016535406105.

It is a super-2 number, since 2×501604535610440² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 501604535610391 and 501604535610400.

It is not an unprimeable number, because it can be changed into a prime (501604535610443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 389699054 + ... + 390984093.

It is an arithmetic number, because the mean of its divisors is an integer number (35271264626640).

Almost surely, 2^{501604535610440} is an apocalyptic number.

It is an amenable number.

501604535610440 is an abundant number, since it is smaller than the sum of its proper divisors (627075932442040).

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

501604535610440 is a wasteful number, since it uses less digits than its factorization.

501604535610440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780699221 (or 780699217 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 44.

The spelling of 501604535610440 in words is "five hundred one trillion, six hundred four billion, five hundred thirty-five million, six hundred ten thousand, four hundred forty".