66736707406733 has 8 divisors (see below), whose sum is σ = 82137486039168. Its totient is φ = 52802669596464.

The previous prime is 66736707406723. The next prime is 66736707406739. The reversal of 66736707406733 is 33760470763766.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66736707406733 - 2⁸ = 66736707406477 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66736707406733.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66736707406739) 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, 366685205441 + ... + 366685205622.

It is an arithmetic number, because the mean of its divisors is an integer number (10267185754896).

Almost surely, 2^{66736707406733} is an apocalyptic number.

It is an amenable number.

66736707406733 is a deficient number, since it is larger than the sum of its proper divisors (15400778632435).

66736707406733 is a wasteful number, since it uses less digits than its factorization.

66736707406733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733370411083.

The product of its (nonzero) digits is 336063168, while the sum is 65.

The spelling of 66736707406733 in words is "sixty-six trillion, seven hundred thirty-six billion, seven hundred seven million, four hundred six thousand, seven hundred thirty-three".