140043660784 has 20 divisors (see below), whose sum is σ = 271340528184. Its totient is φ = 70020298688.

The previous prime is 140043660773. The next prime is 140043660787. The reversal of 140043660784 is 487066340041.

It is a super-2 number, since 2×140043660784² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 140043660784.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140043660787) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1148979 + ... + 1265005.

Almost surely, 2^140043660784 is an apocalyptic number.

It is an amenable number.

140043660784 is a deficient number, since it is larger than the sum of its proper divisors (131296867400).

140043660784 is a wasteful number, since it uses less digits than its factorization.

140043660784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191472 (or 191466 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 43.

The spelling of 140043660784 in words is "one hundred forty billion, forty-three million, six hundred sixty thousand, seven hundred eighty-four".