66419148 has 12 divisors (see below), whose sum is σ = 154978040. Its totient is φ = 22139712.

The previous prime is 66419099. The next prime is 66419149. The reversal of 66419148 is 84191466.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (66419149) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2767453 + ... + 2767476.

Almost surely, 2^66419148 is an apocalyptic number.

It is an amenable number.

66419148 is an abundant number, since it is smaller than the sum of its proper divisors (88558892).

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

66419148 is a wasteful number, since it uses less digits than its factorization.

66419148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5534936 (or 5534934 counting only the distinct ones).

The product of its digits is 41472, while the sum is 39.

The square root of 66419148 is about 8149.7943532337. The cubic root of 66419148 is about 404.9776911961.

The spelling of 66419148 in words is "sixty-six million, four hundred nineteen thousand, one hundred forty-eight".