66348474 has 32 divisors (see below), whose sum is σ = 138879360. Its totient is φ = 21108672.

The previous prime is 66348473. The next prime is 66348479. The reversal of 66348474 is 47484366.

It is not an unprimeable number, because it can be changed into a prime (66348473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8947 + ... + 14585.

It is an arithmetic number, because the mean of its divisors is an integer number (4339980).

Almost surely, 2^66348474 is an apocalyptic number.

66348474 is an abundant number, since it is smaller than the sum of its proper divisors (72530886).

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

66348474 is a wasteful number, since it uses less digits than its factorization.

66348474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5734.

The product of its digits is 387072, while the sum is 42.

The square root of 66348474 is about 8145.4572615661. The cubic root of 66348474 is about 404.8339999472.

The spelling of 66348474 in words is "sixty-six million, three hundred forty-eight thousand, four hundred seventy-four".