140205656140 has 48 divisors (see below), whose sum is σ = 338103601920. Its totient is φ = 48300511680.

The previous prime is 140205656099. The next prime is 140205656141. The reversal of 140205656140 is 41656502041.

It is a junction number, because it is equal to n+sod(n) for n = 140205656096 and 140205656105.

It is not an unprimeable number, because it can be changed into a prime (140205656141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16766832 + ... + 16775191.

It is an arithmetic number, because the mean of its divisors is an integer number (7043825040).

Almost surely, 2^140205656140 is an apocalyptic number.

140205656140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140205656140 is an abundant number, since it is smaller than the sum of its proper divisors (197897945780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140205656140 is a wasteful number, since it uses less digits than its factorization.

140205656140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33542062 (or 33542060 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The spelling of 140205656140 in words is "one hundred forty billion, two hundred five million, six hundred fifty-six thousand, one hundred forty".