115205025542 has 16 divisors (see below), whose sum is σ = 180784487520. Its totient is φ = 54956406912.

The previous prime is 115205025541. The next prime is 115205025547. The reversal of 115205025542 is 245520502511.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 115205025499 and 115205025508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115205025541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3201203 + ... + 3236990.

It is an arithmetic number, because the mean of its divisors is an integer number (11299030470).

Almost surely, 2^115205025542 is an apocalyptic number.

115205025542 is a deficient number, since it is larger than the sum of its proper divisors (65579461978).

115205025542 is a wasteful number, since it uses less digits than its factorization.

115205025542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6438607.

The product of its (nonzero) digits is 20000, while the sum is 32.

The spelling of 115205025542 in words is "one hundred fifteen billion, two hundred five million, twenty-five thousand, five hundred forty-two".