63474435966 has 16 divisors (see below), whose sum is σ = 131326419600. Its totient is φ = 20428554048.

The previous prime is 63474435907. The next prime is 63474435971. The reversal of 63474435966 is 66953447436.

It is a happy number.

It is a congruent number.

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, 182397631 + ... + 182397978.

It is an arithmetic number, because the mean of its divisors is an integer number (8207901225).

Almost surely, 2^63474435966 is an apocalyptic number.

63474435966 is an abundant number, since it is smaller than the sum of its proper divisors (67851983634).

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

63474435966 is a wasteful number, since it uses less digits than its factorization.

63474435966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364795643.

The product of its digits is 39191040, while the sum is 57.

The spelling of 63474435966 in words is "sixty-three billion, four hundred seventy-four million, four hundred thirty-five thousand, nine hundred sixty-six".