21162233366601 has 8 divisors (see below), whose sum is σ = 28308220965024. Its totient is φ = 14062200672960.

The previous prime is 21162233366579. The next prime is 21162233366611. The reversal of 21162233366601 is 10666333226112.

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

It is not a de Polignac number, because 21162233366601 - 2¹¹ = 21162233364553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21162233366611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11488725120 + ... + 11488726961.

It is an arithmetic number, because the mean of its divisors is an integer number (3538527620628).

Almost surely, 2^{21162233366601} is an apocalyptic number.

It is an amenable number.

21162233366601 is a deficient number, since it is larger than the sum of its proper divisors (7145987598423).

21162233366601 is a wasteful number, since it uses less digits than its factorization.

21162233366601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22977452391.

The product of its (nonzero) digits is 279936, while the sum is 42.

The spelling of 21162233366601 in words is "twenty-one trillion, one hundred sixty-two billion, two hundred thirty-three million, three hundred sixty-six thousand, six hundred one".