663133274 has 4 divisors (see below), whose sum is σ = 994699914. Its totient is φ = 331566636.

The previous prime is 663133271. The next prime is 663133279. The reversal of 663133274 is 472331366.

663133274 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 651525625 + 11607649 = 25525^2 + 3407^2 .

It is not an unprimeable number, because it can be changed into a prime (663133271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165783317 + ... + 165783320.

Almost surely, 2^663133274 is an apocalyptic number.

663133274 is a deficient number, since it is larger than the sum of its proper divisors (331566640).

663133274 is a wasteful number, since it uses less digits than its factorization.

663133274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331566639.

The product of its digits is 54432, while the sum is 35.

The square root of 663133274 is about 25751.3742157579. The cubic root of 663133274 is about 872.0343786421.

The spelling of 663133274 in words is "six hundred sixty-three million, one hundred thirty-three thousand, two hundred seventy-four".