65404166022 has 48 divisors (see below), whose sum is σ = 152631984960. Its totient is φ = 20121422976.

The previous prime is 65404165987. The next prime is 65404166077. The reversal of 65404166022 is 22066140456.

65404166022 is a `hidden beast` number, since 6 + 5 + 4 + 0 + 41 + 6 + 602 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2024218 + ... + 2056274.

It is an arithmetic number, because the mean of its divisors is an integer number (3179833020).

Almost surely, 2^65404166022 is an apocalyptic number.

65404166022 is an abundant number, since it is smaller than the sum of its proper divisors (87227818938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65404166022 is a wasteful number, since it uses less digits than its factorization.

65404166022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40797 (or 40794 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 65404166022 in words is "sixty-five billion, four hundred four million, one hundred sixty-six thousand, twenty-two".