66426846 has 16 divisors (see below), whose sum is σ = 133161600. Its totient is φ = 22090968.

The previous prime is 66426827. The next prime is 66426851. The reversal of 66426846 is 64862466.

It is a junction number, because it is equal to n+sod(n) for n = 66426798 and 66426807.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9976 + ... + 15243.

It is an arithmetic number, because the mean of its divisors is an integer number (8322600).

Almost surely, 2^66426846 is an apocalyptic number.

66426846 is an abundant number, since it is smaller than the sum of its proper divisors (66734754).

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

66426846 is a wasteful number, since it uses less digits than its factorization.

66426846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25663.

The product of its digits is 331776, while the sum is 42.

The square root of 66426846 is about 8150.2666214057. The cubic root of 66426846 is about 404.9933362720.

The spelling of 66426846 in words is "sixty-six million, four hundred twenty-six thousand, eight hundred forty-six".