66700740374 has 16 divisors (see below), whose sum is σ = 101582208000. Its totient is φ = 32842589160.

The previous prime is 66700740373. The next prime is 66700740389. The reversal of 66700740374 is 47304700766.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66700740373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 594374 + ... + 697625.

It is an arithmetic number, because the mean of its divisors is an integer number (6348888000).

Almost surely, 2^66700740374 is an apocalyptic number.

66700740374 is a deficient number, since it is larger than the sum of its proper divisors (34881467626).

66700740374 is a wasteful number, since it uses less digits than its factorization.

66700740374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1292395.

The product of its (nonzero) digits is 592704, while the sum is 44.

The spelling of 66700740374 in words is "sixty-six billion, seven hundred million, seven hundred forty thousand, three hundred seventy-four".