66662435606 has 16 divisors (see below), whose sum is σ = 108232107984. Its totient is φ = 30611096544.

The previous prime is 66662435573. The next prime is 66662435611. The reversal of 66662435606 is 60653426666.

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, 6502340 + ... + 6512583.

It is an arithmetic number, because the mean of its divisors is an integer number (6764506749).

Almost surely, 2^66662435606 is an apocalyptic number.

66662435606 is a deficient number, since it is larger than the sum of its proper divisors (41569672378).

66662435606 is a wasteful number, since it uses less digits than its factorization.

66662435606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13015135.

The product of its (nonzero) digits is 5598720, while the sum is 50.

The spelling of 66662435606 in words is "sixty-six billion, six hundred sixty-two million, four hundred thirty-five thousand, six hundred six".