66673367040040 has 32 divisors (see below), whose sum is σ = 150152578299360. Its totient is φ = 26644901934400.

The previous prime is 66673367040013. The next prime is 66673367040043. The reversal of 66673367040040 is 4004076337666.

It is a self number, because there is not a number n which added to its sum of digits gives 66673367040040.

It is not an unprimeable number, because it can be changed into a prime (66673367040043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 763858366 + ... + 763945645.

It is an arithmetic number, because the mean of its divisors is an integer number (4692268071855).

Almost surely, 2^{66673367040040} is an apocalyptic number.

It is an amenable number.

66673367040040 is an abundant number, since it is smaller than the sum of its proper divisors (83479211259320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66673367040040 is a wasteful number, since it uses less digits than its factorization.

66673367040040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1527805113 (or 1527805109 counting only the distinct ones).

The product of its (nonzero) digits is 9144576, while the sum is 52.

The spelling of 66673367040040 in words is "sixty-six trillion, six hundred seventy-three billion, three hundred sixty-seven million, forty thousand, forty".