66423846 has 8 divisors (see below), whose sum is σ = 132847704. Its totient is φ = 22141280.

The previous prime is 66423827. The next prime is 66423871. The reversal of 66423846 is 64832466.

It is a sphenic number, since it is the product of 3 distinct primes.

66423846 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5535315 + ... + 5535326.

It is an arithmetic number, because the mean of its divisors is an integer number (16605963).

Almost surely, 2^66423846 is an apocalyptic number.

66423846 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

66423846 is a wasteful number, since it uses less digits than its factorization.

66423846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11070646.

The product of its digits is 165888, while the sum is 39.

The square root of 66423846 is about 8150.0825762688. The cubic root of 66423846 is about 404.9872393480.

The spelling of 66423846 in words is "sixty-six million, four hundred twenty-three thousand, eight hundred forty-six".