118383392640 has 128 divisors (see below), whose sum is σ = 377923708800. Its totient is φ = 31520663552.

The previous prime is 118383392597. The next prime is 118383392641. The reversal of 118383392640 is 46293383811.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 118383392640.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118383392641) 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, 1218499 + ... + 1312061.

It is an arithmetic number, because the mean of its divisors is an integer number (2952528975).

Almost surely, 2^118383392640 is an apocalyptic number.

118383392640 is a gapful number since it is divisible by the number (10) 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 118383392640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188961854400).

118383392640 is an abundant number, since it is smaller than the sum of its proper divisors (259540316160).

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

118383392640 is an equidigital number, since it uses as much as digits as its factorization.

118383392640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94244 (or 94232 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 48.

The spelling of 118383392640 in words is "one hundred eighteen billion, three hundred eighty-three million, three hundred ninety-two thousand, six hundred forty".