140666828668 has 12 divisors (see below), whose sum is σ = 246179187520. Its totient is φ = 70329917952.

The previous prime is 140666828657. The next prime is 140666828737. The reversal of 140666828668 is 866828666041.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 782508 + ... + 945331.

Almost surely, 2^140666828668 is an apocalyptic number.

It is an amenable number.

140666828668 is a deficient number, since it is larger than the sum of its proper divisors (105512358852).

140666828668 is a wasteful number, since it uses less digits than its factorization.

140666828668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1748196 (or 1748194 counting only the distinct ones).

The product of its (nonzero) digits is 31850496, while the sum is 61.

The spelling of 140666828668 in words is "one hundred forty billion, six hundred sixty-six million, eight hundred twenty-eight thousand, six hundred sixty-eight".