115566147825 has 24 divisors (see below), whose sum is σ = 191165481888. Its totient is φ = 61604273280.

The previous prime is 115566147821. The next prime is 115566147847. The reversal of 115566147825 is 528741665511.

It is not a de Polignac number, because 115566147825 - 2² = 115566147821 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115566147821) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 237099 + ... + 536048.

It is an arithmetic number, because the mean of its divisors is an integer number (7965228412).

Almost surely, 2^115566147825 is an apocalyptic number.

115566147825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

115566147825 is a deficient number, since it is larger than the sum of its proper divisors (75599334063).

115566147825 is a wasteful number, since it uses less digits than its factorization.

115566147825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775153 (or 775148 counting only the distinct ones).

The product of its digits is 2016000, while the sum is 51.

The spelling of 115566147825 in words is "one hundred fifteen billion, five hundred sixty-six million, one hundred forty-seven thousand, eight hundred twenty-five".