663006091 has 8 divisors (see below), whose sum is σ = 748220400. Its totient is φ = 581948640.

The previous prime is 663006089. The next prime is 663006109. The reversal of 663006091 is 190600366.

663006091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 663006091 - 2¹ = 663006089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (663006031) 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, 1038876 + ... + 1039513.

It is an arithmetic number, because the mean of its divisors is an integer number (93527550).

Almost surely, 2^663006091 is an apocalyptic number.

663006091 is a deficient number, since it is larger than the sum of its proper divisors (85214309).

663006091 is a wasteful number, since it uses less digits than its factorization.

663006091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2078429.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 663006091 is about 25748.9046563150. The cubic root of 663006091 is about 871.9786256264.

The spelling of 663006091 in words is "six hundred sixty-three million, six thousand, ninety-one".