115002121254544 has 160 divisors (see below), whose sum is σ = 246380185203552. Its totient is φ = 51769995264000.

The previous prime is 115002121254529. The next prime is 115002121254547. The reversal of 115002121254544 is 445452121200511.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 32669363666944 + 82332757587600 = 5715712^2 + 9073740^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (115002121254547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1437109254 + ... + 1437189274.

Almost surely, 2^{115002121254544} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115002121254544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123190092601776).

115002121254544 is an abundant number, since it is smaller than the sum of its proper divisors (131378063949008).

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

115002121254544 is a wasteful number, since it uses less digits than its factorization.

115002121254544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82485 (or 82479 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 37.

The spelling of 115002121254544 in words is "one hundred fifteen trillion, two billion, one hundred twenty-one million, two hundred fifty-four thousand, five hundred forty-four".