129112664260 has 12 divisors (see below), whose sum is σ = 271136594988. Its totient is φ = 51645065696.

The previous prime is 129112664227. The next prime is 129112664299. The reversal of 129112664260 is 62466211921.

It can be written as a sum of positive squares in 2 ways, for example, as 29581248064 + 99531416196 = 171992^2 + 315486^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3227816587 + ... + 3227816626.

It is an arithmetic number, because the mean of its divisors is an integer number (22594716249).

Almost surely, 2^129112664260 is an apocalyptic number.

129112664260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

129112664260 is an abundant number, since it is smaller than the sum of its proper divisors (142023930728).

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

129112664260 is a wasteful number, since it uses less digits than its factorization.

129112664260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6455633222 (or 6455633220 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The spelling of 129112664260 in words is "one hundred twenty-nine billion, one hundred twelve million, six hundred sixty-four thousand, two hundred sixty".