29235985161 has 8 divisors (see below), whose sum is σ = 41274332064. Its totient is φ = 18344147520.

The previous prime is 29235985153. The next prime is 29235985183. The reversal of 29235985161 is 16158953292.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 29235985161 - 2³ = 29235985153 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51), and also a Moran number because the ratio is a prime number: 573254611 = 29235985161 / (2 + 9 + 2 + 3 + 5 + 9 + 8 + 5 + 1 + 6 + 1).

It is not an unprimeable number, because it can be changed into a prime (29235984161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 286627255 + ... + 286627356.

It is an arithmetic number, because the mean of its divisors is an integer number (5159291508).

Almost surely, 2^29235985161 is an apocalyptic number.

It is an amenable number.

29235985161 is a deficient number, since it is larger than the sum of its proper divisors (12038346903).

29235985161 is a wasteful number, since it uses less digits than its factorization.

29235985161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573254631.

The product of its digits is 1166400, while the sum is 51.

The spelling of 29235985161 in words is "twenty-nine billion, two hundred thirty-five million, nine hundred eighty-five thousand, one hundred sixty-one".