66071204226 has 32 divisors (see below), whose sum is σ = 150405998400. Its totient is φ = 21486569760.

The previous prime is 66071204189. The next prime is 66071204237. The reversal of 66071204226 is 62240217066.

66071204226 is a `hidden beast` number, since 6 + 607 + 1 + 2 + 0 + 42 + 2 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14919016 + ... + 14923443.

It is an arithmetic number, because the mean of its divisors is an integer number (4700187450).

Almost surely, 2^66071204226 is an apocalyptic number.

66071204226 is an abundant number, since it is smaller than the sum of its proper divisors (84334794174).

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

66071204226 is a wasteful number, since it uses less digits than its factorization.

66071204226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29842511 (or 29842505 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The spelling of 66071204226 in words is "sixty-six billion, seventy-one million, two hundred four thousand, two hundred twenty-six".