2164626201361 has 8 divisors (see below), whose sum is σ = 2344015115624. Its totient is φ = 1987077173760.

The previous prime is 2164626201349. The next prime is 2164626201401. The reversal of 2164626201361 is 1631026264612.

It can be written as a sum of positive squares in 4 ways, for example, as 111710361361 + 2052915840000 = 334231^2 + 1432800^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2164626201361 - 2²⁹ = 2164089330449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2164626201301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 459969216 + ... + 459973921.

It is an arithmetic number, because the mean of its divisors is an integer number (293001889453).

Almost surely, 2^{2164626201361} is an apocalyptic number.

It is an amenable number.

2164626201361 is a deficient number, since it is larger than the sum of its proper divisors (179388914263).

2164626201361 is a wasteful number, since it uses less digits than its factorization.

2164626201361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 919943331.

The product of its (nonzero) digits is 124416, while the sum is 40.

The spelling of 2164626201361 in words is "two trillion, one hundred sixty-four billion, six hundred twenty-six million, two hundred one thousand, three hundred sixty-one".