26131066256 has 20 divisors (see below), whose sum is σ = 50631695004. Its totient is φ = 13064822400.

The previous prime is 26131066253. The next prime is 26131066259. The reversal of 26131066256 is 65266013162.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (26131066253) and next prime (26131066259).

It can be written as a sum of positive squares in 2 ways, for example, as 21174906256 + 4956160000 = 145516^2 + 70400^2 .

It is not an unprimeable number, because it can be changed into a prime (26131066253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 384266 + ... + 447126.

Almost surely, 2^26131066256 is an apocalyptic number.

It is an amenable number.

26131066256 is a deficient number, since it is larger than the sum of its proper divisors (24500628748).

26131066256 is a wasteful number, since it uses less digits than its factorization.

26131066256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88850 (or 88844 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 38.

The spelling of 26131066256 in words is "twenty-six billion, one hundred thirty-one million, sixty-six thousand, two hundred fifty-six".