129055802280 has 64 divisors (see below), whose sum is σ = 387294747840. Its totient is φ = 34403561472.

The previous prime is 129055802269. The next prime is 129055802303. The reversal of 129055802280 is 82208550921.

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, 192712 + ... + 543368.

It is an arithmetic number, because the mean of its divisors is an integer number (6051480435).

Almost surely, 2^129055802280 is an apocalyptic number.

129055802280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

129055802280 is an abundant number, since it is smaller than the sum of its proper divisors (258238945560).

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

129055802280 is a wasteful number, since it uses less digits than its factorization.

129055802280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353738 (or 353734 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 42.

It can be divided in two parts, 12905 and 5802280, that added together give a palindrome (5815185).

The spelling of 129055802280 in words is "one hundred twenty-nine billion, fifty-five million, eight hundred two thousand, two hundred eighty".