26690164213325 has 12 divisors (see below), whose sum is σ = 33720252751188. Its totient is φ = 20949260966400.

The previous prime is 26690164213301. The next prime is 26690164213333. The reversal of 26690164213325 is 52331246109662.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 324792484 + 26689839420841 = 18022^2 + 5166221^2 .

It is a de Polignac number, because none of the positive numbers 2^k-26690164213325 is a prime.

It is a super-2 number, since 2×26690164213325² (a number of 28 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 (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10071758756 + ... + 10071761405.

It is an arithmetic number, because the mean of its divisors is an integer number (2810021062599).

Almost surely, 2^{26690164213325} is an apocalyptic number.

26690164213325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

26690164213325 is a deficient number, since it is larger than the sum of its proper divisors (7030088537863).

26690164213325 is a wasteful number, since it uses less digits than its factorization.

26690164213325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20143520224 (or 20143520219 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 50.

The spelling of 26690164213325 in words is "twenty-six trillion, six hundred ninety billion, one hundred sixty-four million, two hundred thirteen thousand, three hundred twenty-five".