2261164434215 has 4 divisors (see below), whose sum is σ = 2713397321064. Its totient is φ = 1808931547368.

The previous prime is 2261164434079. The next prime is 2261164434241. The reversal of 2261164434215 is 5124344611622.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2261164434215 - 2⁸ = 2261164433959 is a prime.

It is a super-2 number, since 2×2261164434215² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 226116443417 + ... + 226116443426.

It is an arithmetic number, because the mean of its divisors is an integer number (678349330266).

Almost surely, 2^{2261164434215} is an apocalyptic number.

2261164434215 is a deficient number, since it is larger than the sum of its proper divisors (452232886849).

2261164434215 is an equidigital number, since it uses as much as digits as its factorization.

2261164434215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452232886848.

The product of its digits is 276480, while the sum is 41.

The spelling of 2261164434215 in words is "two trillion, two hundred sixty-one billion, one hundred sixty-four million, four hundred thirty-four thousand, two hundred fifteen".