66664126 has 8 divisors (see below), whose sum is σ = 100080000. Its totient is φ = 33304128.

The previous prime is 66664109. The next prime is 66664133. The reversal of 66664126 is 62146666.

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

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, 10846 + ... + 15841.

It is an arithmetic number, because the mean of its divisors is an integer number (12510000).

Almost surely, 2^66664126 is an apocalyptic number.

66664126 is a deficient number, since it is larger than the sum of its proper divisors (33415874).

66664126 is a wasteful number, since it uses less digits than its factorization.

66664126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27938.

The product of its digits is 62208, while the sum is 37.

The square root of 66664126 is about 8164.8102243714. The cubic root of 66664126 is about 405.4749820235.

The spelling of 66664126 in words is "sixty-six million, six hundred sixty-four thousand, one hundred twenty-six".