118020911580 has 576 divisors, whose sum is σ = 436419809280. Its totient is φ = 25425100800.

The previous prime is 118020911539. The next prime is 118020911627. The reversal of 118020911580 is 85119020811.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 281672611 + ... + 281673029.

It is an arithmetic number, because the mean of its divisors is an integer number (757673280).

Almost surely, 2^118020911580 is an apocalyptic number.

118020911580 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 118020911580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (218209904640).

118020911580 is an abundant number, since it is smaller than the sum of its proper divisors (318398897700).

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

118020911580 is a wasteful number, since it uses less digits than its factorization.

118020911580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842 (or 837 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 36.

The spelling of 118020911580 in words is "one hundred eighteen billion, twenty million, nine hundred eleven thousand, five hundred eighty".