129077540163 has 36 divisors (see below), whose sum is σ = 220244222952. Its totient is φ = 72211201920.

The previous prime is 129077540153. The next prime is 129077540191. The reversal of 129077540163 is 361045770921.

129077540163 is a `hidden beast` number, since 1 + 2 + 90 + 7 + 7 + 540 + 16 + 3 = 666.

It is not a de Polignac number, because 129077540163 - 2⁸ = 129077539907 is a prime.

It is a super-2 number, since 2×129077540163² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (129077540153) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3840706 + ... + 3874167.

It is an arithmetic number, because the mean of its divisors is an integer number (6117895082).

Almost surely, 2^129077540163 is an apocalyptic number.

129077540163 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

129077540163 is a deficient number, since it is larger than the sum of its proper divisors (91166682789).

129077540163 is a wasteful number, since it uses less digits than its factorization.

129077540163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7714916 (or 7714900 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The spelling of 129077540163 in words is "one hundred twenty-nine billion, seventy-seven million, five hundred forty thousand, one hundred sixty-three".