115211420540040 has 64 divisors (see below), whose sum is σ = 377055558135360. Its totient is φ = 27930041342720.

The previous prime is 115211420540023. The next prime is 115211420540059. The reversal of 115211420540040 is 40045024112511.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43640688279 + ... + 43640690918.

It is an arithmetic number, because the mean of its divisors is an integer number (5891493095865).

Almost surely, 2^{115211420540040} is an apocalyptic number.

115211420540040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115211420540040 is an abundant number, since it is smaller than the sum of its proper divisors (261844137595320).

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

115211420540040 is a wasteful number, since it uses less digits than its factorization.

115211420540040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87281379222 (or 87281379218 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 30.

Adding to 115211420540040 its reverse (40045024112511), we get a palindrome (155256444652551).

The spelling of 115211420540040 in words is "one hundred fifteen trillion, two hundred eleven billion, four hundred twenty million, five hundred forty thousand, forty".