66740074074 has 24 divisors (see below), whose sum is σ = 146345707872. Its totient is φ = 21978658440.

The previous prime is 66740074069. The next prime is 66740074081. The reversal of 66740074074 is 47047004766.

66740074074 is a modest number, since divided by 74074 gives 66740 as remainder.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22334542 + ... + 22337529.

It is an arithmetic number, because the mean of its divisors is an integer number (6097737828).

Almost surely, 2^66740074074 is an apocalyptic number.

66740074074 is an abundant number, since it is smaller than the sum of its proper divisors (79605633798).

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

66740074074 is a wasteful number, since it uses less digits than its factorization.

66740074074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44672162 (or 44672159 counting only the distinct ones).

The product of its (nonzero) digits is 790272, while the sum is 45.

The spelling of 66740074074 in words is "sixty-six billion, seven hundred forty million, seventy-four thousand, seventy-four".