29122020065 has 8 divisors (see below), whose sum is σ = 35519316648. Its totient is φ = 22915687680.

The previous prime is 29122020049. The next prime is 29122020073. The reversal of 29122020065 is 56002022192.

It can be written as a sum of positive squares in 4 ways, for example, as 733813921 + 28388206144 = 27089^2 + 168488^2 .

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

It is not a de Polignac number, because 29122020065 - 2⁴ = 29122020049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

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, 47740712 + ... + 47741321.

It is an arithmetic number, because the mean of its divisors is an integer number (4439914581).

Almost surely, 2^29122020065 is an apocalyptic number.

It is an amenable number.

29122020065 is a deficient number, since it is larger than the sum of its proper divisors (6397296583).

29122020065 is an equidigital number, since it uses as much as digits as its factorization.

29122020065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95482099.

The product of its (nonzero) digits is 4320, while the sum is 29.

The spelling of 29122020065 in words is "twenty-nine billion, one hundred twenty-two million, twenty thousand, sixty-five".