66466051504042 has 16 divisors (see below), whose sum is σ = 100206109238400. Its totient is φ = 33064018274448.

The previous prime is 66466051504031. The next prime is 66466051504051. The reversal of 66466051504042 is 24040515066466.

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, 44255803 + ... + 45733009.

It is an arithmetic number, because the mean of its divisors is an integer number (6262881827400).

Almost surely, 2^{66466051504042} is an apocalyptic number.

66466051504042 is a deficient number, since it is larger than the sum of its proper divisors (33740057734358).

66466051504042 is a wasteful number, since it uses less digits than its factorization.

66466051504042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1591605.

The product of its (nonzero) digits is 4147200, while the sum is 49.

The spelling of 66466051504042 in words is "sixty-six trillion, four hundred sixty-six billion, fifty-one million, five hundred four thousand, forty-two".