140406666352 has 40 divisors (see below), whose sum is σ = 277213797360. Its totient is φ = 68868034560.

The previous prime is 140406666329. The next prime is 140406666383. The reversal of 140406666352 is 253666604041.

140406666352 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 140406666299 and 140406666308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10694352 + ... + 10707472.

It is an arithmetic number, because the mean of its divisors is an integer number (6930344934).

Almost surely, 2^140406666352 is an apocalyptic number.

It is an amenable number.

140406666352 is a deficient number, since it is larger than the sum of its proper divisors (136807131008).

140406666352 is a wasteful number, since it uses less digits than its factorization.

140406666352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25801 (or 25795 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 43.

The spelling of 140406666352 in words is "one hundred forty billion, four hundred six million, six hundred sixty-six thousand, three hundred fifty-two".