64602043666 has 8 divisors (see below), whose sum is σ = 96958160640. Its totient is φ = 32282656788.

The previous prime is 64602043657. The next prime is 64602043699. The reversal of 64602043666 is 66634020646.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9178126 + ... + 9185161.

It is an arithmetic number, because the mean of its divisors is an integer number (12119770080).

Almost surely, 2^64602043666 is an apocalyptic number.

64602043666 is a deficient number, since it is larger than the sum of its proper divisors (32356116974).

64602043666 is a wasteful number, since it uses less digits than its factorization.

64602043666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18365048.

The product of its (nonzero) digits is 746496, while the sum is 43.

The spelling of 64602043666 in words is "sixty-four billion, six hundred two million, forty-three thousand, six hundred sixty-six".