66244426 has 8 divisors (see below), whose sum is σ = 99481824. Its totient is φ = 33083820.

The previous prime is 66244411. The next prime is 66244447. The reversal of 66244426 is 62444266.

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

It is a junction number, because it is equal to n+sod(n) for n = 66244391 and 66244400.

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, 16990 + ... + 20521.

It is an arithmetic number, because the mean of its divisors is an integer number (12435228).

Almost surely, 2^66244426 is an apocalyptic number.

66244426 is a deficient number, since it is larger than the sum of its proper divisors (33237398).

66244426 is a wasteful number, since it uses less digits than its factorization.

66244426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38396.

The product of its digits is 55296, while the sum is 34.

The square root of 66244426 is about 8139.0678827492. The cubic root of 66244426 is about 404.6222683457.

The spelling of 66244426 in words is "sixty-six million, two hundred forty-four thousand, four hundred twenty-six".