115542320320 has 56 divisors (see below), whose sum is σ = 314440177824. Its totient is φ = 39614509056.

The previous prime is 115542320297. The next prime is 115542320321. The reversal of 115542320320 is 23023245511.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (115542320321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25788457 + ... + 25792936.

Almost surely, 2^115542320320 is an apocalyptic number.

115542320320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115542320320 is an abundant number, since it is smaller than the sum of its proper divisors (198897857504).

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

115542320320 is an equidigital number, since it uses as much as digits as its factorization.

115542320320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51581417 (or 51581407 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 115542320320 its reverse (23023245511), we get a palindrome (138565565831).

The spelling of 115542320320 in words is "one hundred fifteen billion, five hundred forty-two million, three hundred twenty thousand, three hundred twenty".