66707400734 has 16 divisors (see below), whose sum is σ = 110386357200. Its totient is φ = 30037103040.

The previous prime is 66707400707. The next prime is 66707400757. The reversal of 66707400734 is 43700470766.

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, 31287584 + ... + 31289715.

It is an arithmetic number, because the mean of its divisors is an integer number (6899147325).

Almost surely, 2^66707400734 is an apocalyptic number.

66707400734 is a deficient number, since it is larger than the sum of its proper divisors (43678956466).

66707400734 is a wasteful number, since it uses less digits than its factorization.

66707400734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62577355.

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

The spelling of 66707400734 in words is "sixty-six billion, seven hundred seven million, four hundred thousand, seven hundred thirty-four".