163446361 has 8 divisors (see below), whose sum is σ = 176589504. Its totient is φ = 150384720.

The previous prime is 163446323. The next prime is 163446383. The reversal of 163446361 is 163644361.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 163446361 - 2¹⁷ = 163315289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (163446061) 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 7 ways as a sum of consecutive naturals, for example, 16171 + ... + 24256.

It is an arithmetic number, because the mean of its divisors is an integer number (22073688).

Almost surely, 2^163446361 is an apocalyptic number.

163446361 is the 8086-th heptagonal number.

It is an amenable number.

163446361 is a deficient number, since it is larger than the sum of its proper divisors (13143143).

163446361 is a wasteful number, since it uses less digits than its factorization.

163446361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40751.

The product of its digits is 31104, while the sum is 34.

The square root of 163446361 is about 12784.6142296121. The cubic root of 163446361 is about 546.7537267567.

The spelling of 163446361 in words is "one hundred sixty-three million, four hundred forty-six thousand, three hundred sixty-one".