64775132066 has 8 divisors (see below), whose sum is σ = 97163957484. Its totient is φ = 32387146240.

The previous prime is 64775132021. The next prime is 64775132077. The reversal of 64775132066 is 66023157746.

It can be written as a sum of positive squares in 2 ways, for example, as 64353035041 + 422097025 = 253679^2 + 20545^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 64775132066.

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, 44786 + ... + 362706.

Almost surely, 2^64775132066 is an apocalyptic number.

64775132066 is a deficient number, since it is larger than the sum of its proper divisors (32388825418).

64775132066 is a wasteful number, since it uses less digits than its factorization.

64775132066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419796.

The product of its (nonzero) digits is 1270080, while the sum is 47.

The spelling of 64775132066 in words is "sixty-four billion, seven hundred seventy-five million, one hundred thirty-two thousand, sixty-six".