2164413631405 has 8 divisors (see below), whose sum is σ = 2600327047032. Its totient is φ = 1729510445568.

The previous prime is 2164413631397. The next prime is 2164413631409. The reversal of 2164413631405 is 5041363144612.

It can be written as a sum of positive squares in 4 ways, for example, as 975958264836 + 1188455366569 = 987906^2 + 1090163^2 .

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 2164413631405 - 2³ = 2164413631397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2164413631409) 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, 252552732 + ... + 252561301.

It is an arithmetic number, because the mean of its divisors is an integer number (325040880879).

Almost surely, 2^{2164413631405} is an apocalyptic number.

It is an amenable number.

2164413631405 is a deficient number, since it is larger than the sum of its proper divisors (435913415627).

2164413631405 is an equidigital number, since it uses as much as digits as its factorization.

2164413631405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505114895.

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 2164413631405 in words is "two trillion, one hundred sixty-four billion, four hundred thirteen million, six hundred thirty-one thousand, four hundred five".