66694848 has 112 divisors (see below), whose sum is σ = 201021696. Its totient is φ = 19317760.

The previous prime is 66694847. The next prime is 66694861. The reversal of 66694848 is 84849666.

It is a self number, because there is not a number n which added to its sum of digits gives 66694848.

It is not an unprimeable number, because it can be changed into a prime (66694847) 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, 47890 + ... + 49262.

Almost surely, 2^66694848 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 66694848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100510848).

66694848 is an abundant number, since it is smaller than the sum of its proper divisors (134326848).

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

66694848 is a wasteful number, since it uses less digits than its factorization.

66694848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1422 (or 1412 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 51.

The square root of 66694848 is about 8166.6913741123. The cubic root of 66694848 is about 405.5372598434.

The spelling of 66694848 in words is "sixty-six million, six hundred ninety-four thousand, eight hundred forty-eight".