66047344 has 40 divisors (see below), whose sum is σ = 146954880. Its totient is φ = 28440000.

The previous prime is 66047341. The next prime is 66047353. The reversal of 66047344 is 44374066.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66047341) 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 7 ways as a sum of consecutive naturals, for example, 6532 + ... + 13219.

It is an arithmetic number, because the mean of its divisors is an integer number (3673872).

Almost surely, 2^66047344 is an apocalyptic number.

It is an amenable number.

66047344 is an abundant number, since it is smaller than the sum of its proper divisors (80907536).

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

66047344 is a wasteful number, since it uses less digits than its factorization.

66047344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19789 (or 19783 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 34.

The square root of 66047344 is about 8126.9517040524. The cubic root of 66047344 is about 404.2206095051.

The spelling of 66047344 in words is "sixty-six million, forty-seven thousand, three hundred forty-four".