26650161 has 8 divisors (see below), whose sum is σ = 39481760. Its totient is φ = 17766756.

The previous prime is 26650157. The next prime is 26650171. The reversal of 26650161 is 16105662.

It is a happy number.

26650161 is a `hidden beast` number, since 2 + 6 + 650 + 1 + 6 + 1 = 666.

It is not a de Polignac number, because 26650161 - 2² = 26650157 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 987043 = 26650161 / (2 + 6 + 6 + 5 + 0 + 1 + 6 + 1).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (26650171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 493495 + ... + 493548.

It is an arithmetic number, because the mean of its divisors is an integer number (4935220).

Almost surely, 2^26650161 is an apocalyptic number.

It is an amenable number.

26650161 is a deficient number, since it is larger than the sum of its proper divisors (12831599).

26650161 is an equidigital number, since it uses as much as digits as its factorization.

26650161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987052 (or 987046 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 26650161 is about 5162.3793932643. The cubic root of 26650161 is about 298.6986632376.

The spelling of 26650161 in words is "twenty-six million, six hundred fifty thousand, one hundred sixty-one".