163266426 has 12 divisors (see below), whose sum is σ = 353743962. Its totient is φ = 54422136.

The previous prime is 163266421. The next prime is 163266427. The reversal of 163266426 is 624662361.

163266426 is a `hidden beast` number, since 1 + 6 + 3 + 2 + 6 + 642 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 148864401 + 14402025 = 12201^2 + 3795^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (163266421) 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 5 ways as a sum of consecutive naturals, for example, 4535161 + ... + 4535196.

Almost surely, 2^163266426 is an apocalyptic number.

163266426 is an abundant number, since it is smaller than the sum of its proper divisors (190477536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163266426 is a wasteful number, since it uses less digits than its factorization.

163266426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9070365 (or 9070362 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

The square root of 163266426 is about 12777.5751220644. The cubic root of 163266426 is about 546.5530161486.

The spelling of 163266426 in words is "one hundred sixty-three million, two hundred sixty-six thousand, four hundred twenty-six".