64550132666 has 16 divisors (see below), whose sum is σ = 98929797120. Its totient is φ = 31574151600.

The previous prime is 64550132561. The next prime is 64550132671. The reversal of 64550132666 is 66623105546.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57116 + ... + 363816.

It is an arithmetic number, because the mean of its divisors is an integer number (6183112320).

Almost surely, 2^64550132666 is an apocalyptic number.

64550132666 is a deficient number, since it is larger than the sum of its proper divisors (34379664454).

64550132666 is a wasteful number, since it uses less digits than its factorization.

64550132666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308989.

The product of its (nonzero) digits is 777600, while the sum is 44.

The spelling of 64550132666 in words is "sixty-four billion, five hundred fifty million, one hundred thirty-two thousand, six hundred sixty-six".