663063193 has 8 divisors (see below), whose sum is σ = 731484936. Its totient is φ = 597129600.

The previous prime is 663063173. The next prime is 663063209. The reversal of 663063193 is 391360366.

It can be written as a sum of positive squares in 4 ways, for example, as 43401744 + 619661449 = 6588^2 + 24893^2 .

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 663063193 - 2¹⁷ = 662932121 is a prime.

It is a super-2 number, since 2×663063193² = 879305595822710498, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (663063133) 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, 621478 + ... + 622543.

It is an arithmetic number, because the mean of its divisors is an integer number (91435617).

Almost surely, 2^663063193 is an apocalyptic number.

It is an amenable number.

663063193 is a deficient number, since it is larger than the sum of its proper divisors (68421743).

663063193 is a wasteful number, since it uses less digits than its factorization.

663063193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1244075.

The product of its (nonzero) digits is 52488, while the sum is 37.

The square root of 663063193 is about 25750.0134563072. The cubic root of 663063193 is about 872.0036582240.

The spelling of 663063193 in words is "six hundred sixty-three million, sixty-three thousand, one hundred ninety-three".