2066964478 has 8 divisors (see below), whose sum is σ = 3100655880. Its totient is φ = 1033412520.

The previous prime is 2066964467. The next prime is 2066964479. The reversal of 2066964478 is 8744696602.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2066964479) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 18588 + ... + 66928.

It is an arithmetic number, because the mean of its divisors is an integer number (387581985).

Almost surely, 2^2066964478 is an apocalyptic number.

2066964478 is a deficient number, since it is larger than the sum of its proper divisors (1033691402).

2066964478 is a wasteful number, since it uses less digits than its factorization.

2066964478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69722.

The product of its (nonzero) digits is 3483648, while the sum is 52.

The square root of 2066964478 is about 45463.8810265908. The cubic root of 2066964478 is about 1273.8286261717.

The spelling of 2066964478 in words is "two billion, sixty-six million, nine hundred sixty-four thousand, four hundred seventy-eight".