26270320161 has 32 divisors (see below), whose sum is σ = 37246809600. Its totient is φ = 16438222080.

The previous prime is 26270320093. The next prime is 26270320169. The reversal of 26270320161 is 16102307262.

It is not a de Polignac number, because 26270320161 - 2¹⁹ = 26269795873 is a prime.

It is a super-2 number, since 2×26270320161² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (26270320169) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4597096 + ... + 4602806.

It is an arithmetic number, because the mean of its divisors is an integer number (1163962800).

Almost surely, 2^26270320161 is an apocalyptic number.

It is an amenable number.

26270320161 is a deficient number, since it is larger than the sum of its proper divisors (10976489439).

26270320161 is a wasteful number, since it uses less digits than its factorization.

26270320161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7209.

The product of its (nonzero) digits is 6048, while the sum is 30.

The spelling of 26270320161 in words is "twenty-six billion, two hundred seventy million, three hundred twenty thousand, one hundred sixty-one".