66662446 has 16 divisors (see below), whose sum is σ = 103121424. Its totient is φ = 32304064.

The previous prime is 66662437. The next prime is 66662461. The reversal of 66662446 is 64426666.

It is a junction number, because it is equal to n+sod(n) for n = 66662399 and 66662408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5010 + ... + 12586.

It is an arithmetic number, because the mean of its divisors is an integer number (6445089).

Almost surely, 2^66662446 is an apocalyptic number.

66662446 is a deficient number, since it is larger than the sum of its proper divisors (36458978).

66662446 is a wasteful number, since it uses less digits than its factorization.

66662446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7715.

The product of its digits is 248832, while the sum is 40.

The square root of 66662446 is about 8164.7073431936. The cubic root of 66662446 is about 405.4715758752.

The spelling of 66662446 in words is "sixty-six million, six hundred sixty-two thousand, four hundred forty-six".