66468603 has 4 divisors (see below), whose sum is σ = 88624808. Its totient is φ = 44312400.

The previous prime is 66468599. The next prime is 66468637. The reversal of 66468603 is 30686466.

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

It is not a de Polignac number, because 66468603 - 2² = 66468599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66468653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11078098 + ... + 11078103.

It is an arithmetic number, because the mean of its divisors is an integer number (22156202).

Almost surely, 2^66468603 is an apocalyptic number.

66468603 is a deficient number, since it is larger than the sum of its proper divisors (22156205).

66468603 is a wasteful number, since it uses less digits than its factorization.

66468603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22156204.

The product of its (nonzero) digits is 124416, while the sum is 39.

The square root of 66468603 is about 8152.8279142884. The cubic root of 66468603 is about 405.0781803043.

The spelling of 66468603 in words is "sixty-six million, four hundred sixty-eight thousand, six hundred three".