1964594945966 has 8 divisors (see below), whose sum is σ = 2972971113264. Its totient is φ = 973604574880.

The previous prime is 1964594945933. The next prime is 1964594945987. The reversal of 1964594945966 is 6695494954691.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4346448770 + ... + 4346449221.

It is an arithmetic number, because the mean of its divisors is an integer number (371621389158).

Almost surely, 2^{1964594945966} is an apocalyptic number.

1964594945966 is a deficient number, since it is larger than the sum of its proper divisors (1008376167298).

1964594945966 is a wasteful number, since it uses less digits than its factorization.

1964594945966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8692898106.

The product of its digits is 2267481600, while the sum is 77.

The spelling of 1964594945966 in words is "one trillion, nine hundred sixty-four billion, five hundred ninety-four million, nine hundred forty-five thousand, nine hundred sixty-six".