115665466644 has 240 divisors, whose sum is σ = 372530928000. Its totient is φ = 30474019584.

The previous prime is 115665466607. The next prime is 115665466703. The reversal of 115665466644 is 446664566511.

It is a happy number.

115665466644 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 50092162 + ... + 50094470.

It is an arithmetic number, because the mean of its divisors is an integer number (1552212200).

Almost surely, 2^115665466644 is an apocalyptic number.

115665466644 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 115665466644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186265464000).

115665466644 is an abundant number, since it is smaller than the sum of its proper divisors (256865461356).

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

115665466644 is a wasteful number, since it uses less digits than its factorization.

115665466644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4044 (or 4033 counting only the distinct ones).

The product of its digits is 12441600, while the sum is 54.

The spelling of 115665466644 in words is "one hundred fifteen billion, six hundred sixty-five million, four hundred sixty-six thousand, six hundred forty-four".