163266413 has 4 divisors (see below), whose sum is σ = 164764380. Its totient is φ = 161768448.

The previous prime is 163266409. The next prime is 163266421. The reversal of 163266413 is 314662361.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 105308644 + 57957769 = 10262^2 + 7613^2 .

It is a cyclic number.

It is not a de Polignac number, because 163266413 - 2² = 163266409 is a prime.

It is a super-2 number, since 2×163266413² = 53311843227773138, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 163266413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163266403) 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 3 ways as a sum of consecutive naturals, for example, 748820 + ... + 749037.

It is an arithmetic number, because the mean of its divisors is an integer number (41191095).

Almost surely, 2^163266413 is an apocalyptic number.

It is an amenable number.

163266413 is a deficient number, since it is larger than the sum of its proper divisors (1497967).

163266413 is a wasteful number, since it uses less digits than its factorization.

163266413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1497966.

The product of its digits is 15552, while the sum is 32.

The square root of 163266413 is about 12777.5746133607. The cubic root of 163266413 is about 546.5530016423.

The spelling of 163266413 in words is "one hundred sixty-three million, two hundred sixty-six thousand, four hundred thirteen".