118615557125 has 32 divisors (see below), whose sum is σ = 164916591840. Its totient is φ = 84572544000.

The previous prime is 118615557113. The next prime is 118615557127. The reversal of 118615557125 is 521755516811.

It can be written as a sum of positive squares in 16 ways, for example, as 95407472161 + 23208084964 = 308881^2 + 152342^2 .

It is a de Polignac number, because none of the positive numbers 2^k-118615557125 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 118615557125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118615557127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1211396 + ... + 1305645.

It is an arithmetic number, because the mean of its divisors is an integer number (5153643495).

Almost surely, 2^118615557125 is an apocalyptic number.

It is an amenable number.

118615557125 is a deficient number, since it is larger than the sum of its proper divisors (46301034715).

118615557125 is a wasteful number, since it uses less digits than its factorization.

118615557125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2517098 (or 2517088 counting only the distinct ones).

The product of its digits is 420000, while the sum is 47.

The spelling of 118615557125 in words is "one hundred eighteen billion, six hundred fifteen million, five hundred fifty-seven thousand, one hundred twenty-five".