6236406666161 has 4 divisors (see below), whose sum is σ = 7127321904192. Its totient is φ = 5345491428132.

The previous prime is 6236406666109. The next prime is 6236406666173. The reversal of 6236406666161 is 1616666046326.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6236406666161 - 2¹⁴ = 6236406649777 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6236406666661) 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, 445457619005 + ... + 445457619018.

It is an arithmetic number, because the mean of its divisors is an integer number (1781830476048).

Almost surely, 2^{6236406666161} is an apocalyptic number.

It is an amenable number.

6236406666161 is a deficient number, since it is larger than the sum of its proper divisors (890915238031).

6236406666161 is an equidigital number, since it uses as much as digits as its factorization.

6236406666161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890915238030.

The product of its (nonzero) digits is 6718464, while the sum is 53.

The spelling of 6236406666161 in words is "six trillion, two hundred thirty-six billion, four hundred six million, six hundred sixty-six thousand, one hundred sixty-one".