115511404320125 has 48 divisors (see below), whose sum is σ = 162139915793856. Its totient is φ = 82054612332000.

The previous prime is 115511404320119. The next prime is 115511404320131. The reversal of 115511404320125 is 521023404115511.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (115511404320119) and next prime (115511404320131).

It is not a de Polignac number, because 115511404320125 - 2¹⁴ = 115511404303741 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 88153319 + ... + 89454068.

It is an arithmetic number, because the mean of its divisors is an integer number (3377914912372).

Almost surely, 2^{115511404320125} is an apocalyptic number.

It is an amenable number.

115511404320125 is a deficient number, since it is larger than the sum of its proper divisors (46628511473731).

115511404320125 is a wasteful number, since it uses less digits than its factorization.

115511404320125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177607467 (or 177607446 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 35.

Adding to 115511404320125 its reverse (521023404115511), we get a palindrome (636534808435636).

The spelling of 115511404320125 in words is "one hundred fifteen trillion, five hundred eleven billion, four hundred four million, three hundred twenty thousand, one hundred twenty-five".