115644238164 has 480 divisors, whose sum is σ = 380670259200. Its totient is φ = 29804785920.

The previous prime is 115644238159. The next prime is 115644238181. The reversal of 115644238164 is 461832446511.

115644238164 is a `hidden beast` number, since 1 + 1 + 5 + 64 + 423 + 8 + 164 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 305129727 + ... + 305130105.

It is an arithmetic number, because the mean of its divisors is an integer number (793063040).

Almost surely, 2^115644238164 is an apocalyptic number.

115644238164 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115644238164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190335129600).

115644238164 is an abundant number, since it is smaller than the sum of its proper divisors (265026021036).

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

115644238164 is a wasteful number, since it uses less digits than its factorization.

115644238164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625 (or 614 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The spelling of 115644238164 in words is "one hundred fifteen billion, six hundred forty-four million, two hundred thirty-eight thousand, one hundred sixty-four".