29115800161 has 16 divisors (see below), whose sum is σ = 34444909440. Its totient is φ = 24080232960.

The previous prime is 29115800143. The next prime is 29115800177. The reversal of 29115800161 is 16100851192.

It is not a de Polignac number, because 29115800161 - 2²¹ = 29113703009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29115800111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 273265 + ... + 364561.

It is an arithmetic number, because the mean of its divisors is an integer number (2152806840).

Almost surely, 2^29115800161 is an apocalyptic number.

It is an amenable number.

29115800161 is a deficient number, since it is larger than the sum of its proper divisors (5329109279).

29115800161 is a wasteful number, since it uses less digits than its factorization.

29115800161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92904.

The product of its (nonzero) digits is 4320, while the sum is 34.

The spelling of 29115800161 in words is "twenty-nine billion, one hundred fifteen million, eight hundred thousand, one hundred sixty-one".