188890360120 has 128 divisors (see below), whose sum is σ = 530012367360. Its totient is φ = 58859573760.

The previous prime is 188890360117. The next prime is 188890360123. The reversal of 188890360120 is 21063098881.

It is an interprime number because it is at equal distance from previous prime (188890360117) and next prime (188890360123).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188890360123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19697967 + ... + 19707553.

It is an arithmetic number, because the mean of its divisors is an integer number (4140721620).

Almost surely, 2^188890360120 is an apocalyptic number.

188890360120 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 188890360120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (265006183680).

188890360120 is an abundant number, since it is smaller than the sum of its proper divisors (341122007240).

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

188890360120 is a wasteful number, since it uses less digits than its factorization.

188890360120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16013 (or 16009 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 46.

The spelling of 188890360120 in words is "one hundred eighty-eight billion, eight hundred ninety million, three hundred sixty thousand, one hundred twenty".