663161366 has 8 divisors (see below), whose sum is σ = 1136848080. Its totient is φ = 284212008.

The previous prime is 663161363. The next prime is 663161407.

663161366 is nontrivially palindromic in base 10.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663161363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23684321 + ... + 23684348.

It is an arithmetic number, because the mean of its divisors is an integer number (142106010).

Almost surely, 2^663161366 is an apocalyptic number.

663161366 is a deficient number, since it is larger than the sum of its proper divisors (473686714).

663161366 is a wasteful number, since it uses less digits than its factorization.

663161366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47368678.

The product of its digits is 69984, while the sum is 38.

The square root of 663161366 is about 25751.9196566004. The cubic root of 663161366 is about 872.0466923276.

The spelling of 663161366 in words is "six hundred sixty-three million, one hundred sixty-one thousand, three hundred sixty-six".