663297099 has 4 divisors (see below), whose sum is σ = 884396136. Its totient is φ = 442198064.

The previous prime is 663297079. The next prime is 663297133. The reversal of 663297099 is 990792366.

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

It is a cyclic number.

It is not a de Polignac number, because 663297099 - 2¹² = 663293003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (663297029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110549514 + ... + 110549519.

It is an arithmetic number, because the mean of its divisors is an integer number (221099034).

Almost surely, 2^663297099 is an apocalyptic number.

663297099 is a deficient number, since it is larger than the sum of its proper divisors (221099037).

663297099 is a wasteful number, since it uses less digits than its factorization.

663297099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221099036.

The product of its (nonzero) digits is 1102248, while the sum is 51.

The square root of 663297099 is about 25754.5549175287. The cubic root of 663297099 is about 872.1061838507.

The spelling of 663297099 in words is "six hundred sixty-three million, two hundred ninety-seven thousand, ninety-nine".