5145999559956 has 72 divisors (see below), whose sum is σ = 14145362922600. Its totient is φ = 1570797950976.

The previous prime is 5145999559931. The next prime is 5145999559979. The reversal of 5145999559956 is 6599559995415.

5145999559956 is a `hidden beast` number, since 5 + 1 + 4 + 5 + 9 + 9 + 9 + 559 + 9 + 56 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 4319871264900 + 826128295056 = 2078430^2 + 908916^2 .

It is a super-2 number, since 2×5145999559956² (a number of 26 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 in 23 ways as a sum of consecutive naturals, for example, 113605681 + ... + 113650968.

It is an arithmetic number, because the mean of its divisors is an integer number (196463373925).

Almost surely, 2^{5145999559956} is an apocalyptic number.

It is an amenable number.

5145999559956 is an abundant number, since it is smaller than the sum of its proper divisors (8999363362644).

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

5145999559956 is a wasteful number, since it uses less digits than its factorization.

5145999559956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227256713 (or 227256708 counting only the distinct ones).

The product of its digits is 4428675000, while the sum is 81.

The spelling of 5145999559956 in words is "five trillion, one hundred forty-five billion, nine hundred ninety-nine million, five hundred fifty-nine thousand, nine hundred fifty-six".