15115411240000 has 140 divisors (see below), whose sum is σ = 39454009738000. Its totient is φ = 5727945024000.

The previous prime is 15115411239991. The next prime is 15115411240037. The reversal of 15115411240000 is 4211451151.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9184350 + ... + 10704349.

Almost surely, 2^{15115411240000} is an apocalyptic number.

15115411240000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15115411240000 is an abundant number, since it is smaller than the sum of its proper divisors (24338598498000).

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

15115411240000 is an equidigital number, since it uses as much as digits as its factorization.

15115411240000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19888750 (or 19888725 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 25.

Adding to 15115411240000 its reverse (4211451151), we get a palindrome (15119622691151).

The spelling of 15115411240000 in words is "fifteen trillion, one hundred fifteen billion, four hundred eleven million, two hundred forty thousand".