66700000737 has 12 divisors (see below), whose sum is σ = 99452331264. Its totient is φ = 43032258360.

The previous prime is 66700000729. The next prime is 66700000813. The reversal of 66700000737 is 73700000766.

It is not a de Polignac number, because 66700000737 - 2³ = 66700000729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66700000727) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 119533773 + ... + 119534330.

It is an arithmetic number, because the mean of its divisors is an integer number (8287694272).

Almost surely, 2^66700000737 is an apocalyptic number.

It is an amenable number.

66700000737 is a deficient number, since it is larger than the sum of its proper divisors (32752330527).

66700000737 is a wasteful number, since it uses less digits than its factorization.

66700000737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239068140 (or 239068137 counting only the distinct ones).

The product of its (nonzero) digits is 37044, while the sum is 36.

The spelling of 66700000737 in words is "sixty-six billion, seven hundred million, seven hundred thirty-seven", and thus it is an aban number.