115145440000 has 90 divisors (see below), whose sum is σ = 287209829060. Its totient is φ = 46058112000.

The previous prime is 115145439989. The next prime is 115145440001. The reversal of 115145440000 is 44541511.

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

It is not an unprimeable number, because it can be changed into a prime (115145440001) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 199830 + ... + 519829.

Almost surely, 2^115145440000 is an apocalyptic number.

115145440000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115145440000 is an abundant number, since it is smaller than the sum of its proper divisors (172064389060).

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

115145440000 is an frugal number, since it uses more digits than its factorization.

115145440000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719695 (or 719666 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

Adding to 115145440000 its reverse (44541511), we get a palindrome (115189981511).

The spelling of 115145440000 in words is "one hundred fifteen billion, one hundred forty-five million, four hundred forty thousand".