2164412225405 has 4 divisors (see below), whose sum is σ = 2597294670492. Its totient is φ = 1731529780320.

The previous prime is 2164412225389. The next prime is 2164412225429. The reversal of 2164412225405 is 5045222144612.

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 1180104178276 + 984308047129 = 1086326^2 + 992123^2 .

It is not a de Polignac number, because 2164412225405 - 2⁴ = 2164412225389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216441222536 + ... + 216441222545.

It is an arithmetic number, because the mean of its divisors is an integer number (649323667623).

Almost surely, 2^{2164412225405} is an apocalyptic number.

It is an amenable number.

2164412225405 is a deficient number, since it is larger than the sum of its proper divisors (432882445087).

2164412225405 is an equidigital number, since it uses as much as digits as its factorization.

2164412225405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432882445086.

The product of its (nonzero) digits is 153600, while the sum is 38.

The spelling of 2164412225405 in words is "two trillion, one hundred sixty-four billion, four hundred twelve million, two hundred twenty-five thousand, four hundred five".