66474876 has 96 divisors (see below), whose sum is σ = 177020928. Its totient is φ = 19261440.

The previous prime is 66474857. The next prime is 66474883. The reversal of 66474876 is 67847466.

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 (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 347941 + ... + 348131.

It is an arithmetic number, because the mean of its divisors is an integer number (1843968).

Almost surely, 2^66474876 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66474876, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88510464).

66474876 is an abundant number, since it is smaller than the sum of its proper divisors (110546052).

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

66474876 is a wasteful number, since it uses less digits than its factorization.

66474876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331 (or 329 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 48.

The square root of 66474876 is about 8153.2126183487. The cubic root of 66474876 is about 405.0909230399.

The spelling of 66474876 in words is "sixty-six million, four hundred seventy-four thousand, eight hundred seventy-six".