66200670616 has 16 divisors (see below), whose sum is σ = 124149380040. Its totient is φ = 33094169280.

The previous prime is 66200670607. The next prime is 66200670673. The reversal of 66200670616 is 61607600266.

It is a congruent number.

It is an unprimeable number.

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, 724965 + ... + 811156.

Almost surely, 2^66200670616 is an apocalyptic number.

It is an amenable number.

66200670616 is a deficient number, since it is larger than the sum of its proper divisors (57948709424).

66200670616 is a wasteful number, since it uses less digits than its factorization.

66200670616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1541514 (or 1541510 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 40.

The spelling of 66200670616 in words is "sixty-six billion, two hundred million, six hundred seventy thousand, six hundred sixteen".