129148168950 has 144 divisors (see below), whose sum is σ = 368475054480. Its totient is φ = 32337930240.

The previous prime is 129148168913. The next prime is 129148168979. The reversal of 129148168950 is 59861841921.

129148168950 is a `hidden beast` number, since 12 + 9 + 1 + 481 + 68 + 95 + 0 = 666.

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, 899314 + ... + 1032986.

It is an arithmetic number, because the mean of its divisors is an integer number (2558854545).

Almost surely, 2^129148168950 is an apocalyptic number.

129148168950 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 129148168950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184237527240).

129148168950 is an abundant number, since it is smaller than the sum of its proper divisors (239326885530).

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

129148168950 is a wasteful number, since it uses less digits than its factorization.

129148168950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133823 (or 133815 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 54.

The spelling of 129148168950 in words is "one hundred twenty-nine billion, one hundred forty-eight million, one hundred sixty-eight thousand, nine hundred fifty".