26065157121 has 6 divisors (see below), whose sum is σ = 37649671410. Its totient is φ = 17376771408.

The previous prime is 26065157047. The next prime is 26065157141. The reversal of 26065157121 is 12175156062.

26065157121 is a `hidden beast` number, since 2 + 6 + 0 + 65 + 1 + 571 + 21 = 666.

It can be written as a sum of positive squares in only one way, i.e., 25102916721 + 962240400 = 158439^2 + 31020^2 .

It is not a de Polignac number, because 26065157121 - 2¹³ = 26065148929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26065157141) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1448064276 + ... + 1448064293.

It is an arithmetic number, because the mean of its divisors is an integer number (6274945235).

Almost surely, 2^26065157121 is an apocalyptic number.

It is an amenable number.

26065157121 is a deficient number, since it is larger than the sum of its proper divisors (11584514289).

26065157121 is a wasteful number, since it uses less digits than its factorization.

26065157121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2896128575 (or 2896128572 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The spelling of 26065157121 in words is "twenty-six billion, sixty-five million, one hundred fifty-seven thousand, one hundred twenty-one".