108129371550 has 96 divisors (see below), whose sum is σ = 270451868544. Its totient is φ = 28588560000.

The previous prime is 108129371531. The next prime is 108129371561. The reversal of 108129371550 is 55173921801.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32754900 + ... + 32758200.

It is an arithmetic number, because the mean of its divisors is an integer number (2817206964).

Almost surely, 2^108129371550 is an apocalyptic number.

108129371550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 108129371550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135225934272).

108129371550 is an abundant number, since it is smaller than the sum of its proper divisors (162322496994).

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

108129371550 is a wasteful number, since it uses less digits than its factorization.

108129371550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5114 (or 5109 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 42.

The spelling of 108129371550 in words is "one hundred eight billion, one hundred twenty-nine million, three hundred seventy-one thousand, five hundred fifty".