663588045 has 48 divisors (see below), whose sum is σ = 1213168320. Its totient is φ = 347877504.

The previous prime is 663588043. The next prime is 663588049. The reversal of 663588045 is 540885366.

663588045 is a `hidden beast` number, since 6 + 63 + 588 + 0 + 4 + 5 = 666.

It is not a de Polignac number, because 663588045 - 2¹ = 663588043 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663588043) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 67057 + ... + 76313.

It is an arithmetic number, because the mean of its divisors is an integer number (25274340).

Almost surely, 2^663588045 is an apocalyptic number.

It is an amenable number.

663588045 is a deficient number, since it is larger than the sum of its proper divisors (549580275).

663588045 is an equidigital number, since it uses as much as digits as its factorization.

663588045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9336 (or 9324 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The square root of 663588045 is about 25760.2027360035. The cubic root of 663588045 is about 872.2336776067.

The spelling of 663588045 in words is "six hundred sixty-three million, five hundred eighty-eight thousand, forty-five".