129023420160 has 144 divisors (see below), whose sum is σ = 429984866304. Its totient is φ = 32910299136.

The previous prime is 129023420159. The next prime is 129023420171. The reversal of 129023420160 is 61024320921.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 642112 + ... + 818751.

It is an arithmetic number, because the mean of its divisors is an integer number (2986006016).

Almost surely, 2^129023420160 is an apocalyptic number.

129023420160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

129023420160 is an abundant number, since it is smaller than the sum of its proper divisors (300961446144).

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

129023420160 is a wasteful number, since it uses less digits than its factorization.

129023420160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1460910 (or 1460896 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The spelling of 129023420160 in words is "one hundred twenty-nine billion, twenty-three million, four hundred twenty thousand, one hundred sixty".