26526311161 has 27 divisors (see below), whose sum is σ = 31522136751. Its totient is φ = 22257026064.

The previous prime is 26526311143. The next prime is 26526311183. The reversal of 26526311161 is 16111362562.

The square root of 26526311161 is 162869.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 19122741225 + 7403569936 = 138285^2 + 86044^2 .

It is not a de Polignac number, because 26526311161 - 2⁹ = 26526310649 is a prime.

It is a super-3 number, since 3×26526311161³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (26526311101) by changing a digit.

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 26 ways as a sum of consecutive naturals, for example, 60424180 + ... + 60424618.

Almost surely, 2^26526311161 is an apocalyptic number.

26526311161 is the 162869-th square number.

26526311161 is the 81435-th centered octagonal number.

It is an amenable number.

26526311161 is a deficient number, since it is larger than the sum of its proper divisors (4995825590).

26526311161 is an frugal number, since it uses more digits than its factorization.

26526311161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998 (or 499 counting only the distinct ones).

The product of its digits is 12960, while the sum is 34.

The spelling of 26526311161 in words is "twenty-six billion, five hundred twenty-six million, three hundred eleven thousand, one hundred sixty-one".