663006101 has 4 divisors (see below), whose sum is σ = 663057600. Its totient is φ = 662954604.

The previous prime is 663006089. The next prime is 663006109. The reversal of 663006101 is 101600366.

663006101 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, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 663006101 - 2⁶ = 663006037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663006109) 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, 12770 + ... + 38588.

It is an arithmetic number, because the mean of its divisors is an integer number (165764400).

Almost surely, 2^663006101 is an apocalyptic number.

It is an amenable number.

663006101 is a deficient number, since it is larger than the sum of its proper divisors (51499).

663006101 is a wasteful number, since it uses less digits than its factorization.

663006101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51498.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 663006101 is about 25748.9048504980. The cubic root of 663006101 is about 871.9786300103.

Adding to 663006101 its reverse (101600366), we get a palindrome (764606467).

The spelling of 663006101 in words is "six hundred sixty-three million, six thousand, one hundred one".