115575802540 has 48 divisors (see below), whose sum is σ = 280348586784. Its totient is φ = 39555353600.

The previous prime is 115575802499. The next prime is 115575802549. The reversal of 115575802540 is 45208575511.

It is a super-2 number, since 2×115575802540² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (115575802549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15447571 + ... + 15455050.

It is an arithmetic number, because the mean of its divisors is an integer number (5840595558).

Almost surely, 2^115575802540 is an apocalyptic number.

115575802540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115575802540 is an abundant number, since it is smaller than the sum of its proper divisors (164772784244).

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

115575802540 is a wasteful number, since it uses less digits than its factorization.

115575802540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30902658 (or 30902656 counting only the distinct ones).

The product of its (nonzero) digits is 280000, while the sum is 43.

The spelling of 115575802540 in words is "one hundred fifteen billion, five hundred seventy-five million, eight hundred two thousand, five hundred forty".