140213520656 has 40 divisors (see below), whose sum is σ = 296382857664. Its totient is φ = 63728588160.

The previous prime is 140213520641. The next prime is 140213520683. The reversal of 140213520656 is 656025312041.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3407501 + ... + 3448403.

Almost surely, 2^140213520656 is an apocalyptic number.

140213520656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

140213520656 is an abundant number, since it is smaller than the sum of its proper divisors (156169337008).

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

140213520656 is a wasteful number, since it uses less digits than its factorization.

140213520656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60399 (or 60393 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

Adding to 140213520656 its reverse (656025312041), we get a palindrome (796238832697).

The spelling of 140213520656 in words is "one hundred forty billion, two hundred thirteen million, five hundred twenty thousand, six hundred fifty-six".