188136168948 has 216 divisors, whose sum is σ = 599773847400. Its totient is φ = 49284426240.

The previous prime is 188136168931. The next prime is 188136169033. The reversal of 188136168948 is 849861631881.

188136168948 is a `hidden beast` number, since 1 + 8 + 8 + 1 + 3 + 616 + 8 + 9 + 4 + 8 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 302342544 + 187833826404 = 17388^2 + 433398^2 .

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3389338 + ... + 3444398.

It is an arithmetic number, because the mean of its divisors is an integer number (2776730775).

Almost surely, 2^188136168948 is an apocalyptic number.

188136168948 is a gapful number since it is divisible by the number (18) 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 188136168948, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (299886923700).

188136168948 is an abundant number, since it is smaller than the sum of its proper divisors (411637678452).

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

188136168948 is a wasteful number, since it uses less digits than its factorization.

188136168948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55247 (or 55235 counting only the distinct ones).

The product of its digits is 15925248, while the sum is 63.

The spelling of 188136168948 in words is "one hundred eighty-eight billion, one hundred thirty-six million, one hundred sixty-eight thousand, nine hundred forty-eight".