901101566006161 has 4 divisors (see below), whose sum is σ = 970417071083572. Its totient is φ = 831786060928752.

The previous prime is 901101566006113. The next prime is 901101566006179. The reversal of 901101566006161 is 161600665101109.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 291164943365136 + 609936622641025 = 17063556^2 + 24696895^2 .

It is a cyclic number.

It is not a de Polignac number, because 901101566006161 - 2¹⁵ = 901101565973393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (901101569006161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34657752538686 + ... + 34657752538711.

It is an arithmetic number, because the mean of its divisors is an integer number (242604267770893).

Almost surely, 2^{901101566006161} is an apocalyptic number.

It is an amenable number.

901101566006161 is a deficient number, since it is larger than the sum of its proper divisors (69315505077411).

901101566006161 is a wasteful number, since it uses less digits than its factorization.

901101566006161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69315505077410.

The product of its (nonzero) digits is 58320, while the sum is 43.

The spelling of 901101566006161 in words is "nine hundred one trillion, one hundred one billion, five hundred sixty-six million, six thousand, one hundred sixty-one".