129360657072 has 80 divisors (see below), whose sum is σ = 355398717312. Its totient is φ = 40404894720.

The previous prime is 129360657067. The next prime is 129360657079. The reversal of 129360657072 is 270756063921.

It is a super-2 number, since 2×129360657072² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (129360657079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163954 + ... + 534417.

Almost surely, 2^129360657072 is an apocalyptic number.

129360657072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

129360657072 is an abundant number, since it is smaller than the sum of its proper divisors (226038060240).

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

129360657072 is a wasteful number, since it uses less digits than its factorization.

129360657072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698626 (or 698620 counting only the distinct ones).

The product of its (nonzero) digits is 952560, while the sum is 48.

The spelling of 129360657072 in words is "one hundred twenty-nine billion, three hundred sixty million, six hundred fifty-seven thousand, seventy-two".