115421521632 has 96 divisors (see below), whose sum is σ = 325713830400. Its totient is φ = 35673366528.

The previous prime is 115421521561. The next prime is 115421521637. The reversal of 115421521632 is 236125124511.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 115421521593 and 115421521602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115421521637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 587457 + ... + 758912.

It is an arithmetic number, because the mean of its divisors is an integer number (3392852400).

Almost surely, 2^115421521632 is an apocalyptic number.

115421521632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

115421521632 is an abundant number, since it is smaller than the sum of its proper divisors (210292308768).

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

115421521632 is a wasteful number, since it uses less digits than its factorization.

115421521632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1346448 (or 1346440 counting only the distinct ones).

The product of its digits is 14400, while the sum is 33.

The spelling of 115421521632 in words is "one hundred fifteen billion, four hundred twenty-one million, five hundred twenty-one thousand, six hundred thirty-two".