129090011265 has 48 divisors (see below), whose sum is σ = 225045520128. Its totient is φ = 68451723648.

The previous prime is 129090011249. The next prime is 129090011311. The reversal of 129090011265 is 562110090921.

It is not a de Polignac number, because 129090011265 - 2⁴ = 129090011249 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15802212 + ... + 15810378.

It is an arithmetic number, because the mean of its divisors is an integer number (4688448336).

Almost surely, 2^129090011265 is an apocalyptic number.

129090011265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

129090011265 is a deficient number, since it is larger than the sum of its proper divisors (95955508863).

129090011265 is a wasteful number, since it uses less digits than its factorization.

129090011265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10158 (or 10155 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 36.

The spelling of 129090011265 in words is "one hundred twenty-nine billion, ninety million, eleven thousand, two hundred sixty-five".