2210667165601 has 4 divisors (see below), whose sum is σ = 2216929679172. Its totient is φ = 2204404652032.

The previous prime is 2210667165599. The next prime is 2210667165617. The reversal of 2210667165601 is 1065617660122.

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 1059715830625 + 1150951334976 = 1029425^2 + 1072824^2 .

It is a cyclic number.

It is not a de Polignac number, because 2210667165601 - 2¹ = 2210667165599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2210667165691) 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, 3131256256 + ... + 3131256961.

It is an arithmetic number, because the mean of its divisors is an integer number (554232419793).

Almost surely, 2^{2210667165601} is an apocalyptic number.

It is an amenable number.

2210667165601 is a deficient number, since it is larger than the sum of its proper divisors (6262513571).

2210667165601 is an equidigital number, since it uses as much as digits as its factorization.

2210667165601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6262513570.

The product of its (nonzero) digits is 181440, while the sum is 43.

The spelling of 2210667165601 in words is "two trillion, two hundred ten billion, six hundred sixty-seven million, one hundred sixty-five thousand, six hundred one".