66707333733 has 16 divisors (see below), whose sum is σ = 89576315136. Its totient is φ = 44156076480.

The previous prime is 66707333729. The next prime is 66707333741. The reversal of 66707333733 is 33733370766.

It is not a de Polignac number, because 66707333733 - 2² = 66707333729 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66707333773) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98191 + ... + 378227.

It is an arithmetic number, because the mean of its divisors is an integer number (5598519696).

Almost surely, 2^66707333733 is an apocalyptic number.

It is an amenable number.

66707333733 is a deficient number, since it is larger than the sum of its proper divisors (22868981403).

66707333733 is a wasteful number, since it uses less digits than its factorization.

66707333733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280604.

The product of its (nonzero) digits is 3000564, while the sum is 48.

The spelling of 66707333733 in words is "sixty-six billion, seven hundred seven million, three hundred thirty-three thousand, seven hundred thirty-three".