39966356141793 has 16 divisors (see below), whose sum is σ = 59209759976640. Its totient is φ = 26644082866272.

The previous prime is 39966356141791. The next prime is 39966356141827. The reversal of 39966356141793 is 39714165366993.

39966356141793 is a `hidden beast` number, since 3 + 9 + 9 + 6 + 63 + 5 + 61 + 417 + 93 = 666.

It is not a de Polignac number, because 39966356141793 - 2¹ = 39966356141791 is a prime.

It is a Smith number, since the sum of its digits (72) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (39966356141791) 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, 546430 + ... + 8957192.

It is an arithmetic number, because the mean of its divisors is an integer number (3700609998540).

Almost surely, 2^{39966356141793} is an apocalyptic number.

It is an amenable number.

39966356141793 is a deficient number, since it is larger than the sum of its proper divisors (19243403834847).

39966356141793 is a wasteful number, since it uses less digits than its factorization.

39966356141793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8586765 (or 8586759 counting only the distinct ones).

The product of its digits is 595213920, while the sum is 72.

The spelling of 39966356141793 in words is "thirty-nine trillion, nine hundred sixty-six billion, three hundred fifty-six million, one hundred forty-one thousand, seven hundred ninety-three".