129570057680 has 160 divisors (see below), whose sum is σ = 374097960960. Its totient is φ = 40728199680.

The previous prime is 129570057679. The next prime is 129570057689. The reversal of 129570057680 is 86750075921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129570057689) 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, 133427 + ... + 526253.

It is an arithmetic number, because the mean of its divisors is an integer number (2338112256).

Almost surely, 2^129570057680 is an apocalyptic number.

129570057680 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 129570057680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187048980480).

129570057680 is an abundant number, since it is smaller than the sum of its proper divisors (244527903280).

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

129570057680 is a wasteful number, since it uses less digits than its factorization.

129570057680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392897 (or 392891 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 50.

The spelling of 129570057680 in words is "one hundred twenty-nine billion, five hundred seventy million, fifty-seven thousand, six hundred eighty".