666666740733 has 32 divisors (see below), whose sum is σ = 1037607014400. Its totient is φ = 372804085440.

The previous prime is 666666740731. The next prime is 666666740767. The reversal of 666666740733 is 337047666666.

It is not a de Polignac number, because 666666740733 - 2¹ = 666666740731 is a prime.

It is a super-2 number, since 2×666666740733² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666666740731) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9785718 + ... + 9853608.

It is an arithmetic number, because the mean of its divisors is an integer number (32425219200).

Almost surely, 2^666666740733 is an apocalyptic number.

It is an amenable number.

666666740733 is a deficient number, since it is larger than the sum of its proper divisors (370940273667).

666666740733 is a wasteful number, since it uses less digits than its factorization.

666666740733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77897.

The product of its (nonzero) digits is 82301184, while the sum is 60.

The spelling of 666666740733 in words is "six hundred sixty-six billion, six hundred sixty-six million, seven hundred forty thousand, seven hundred thirty-three".