221600256140 has 24 divisors (see below), whose sum is σ = 466066727280. Its totient is φ = 88505590208.

The previous prime is 221600256121. The next prime is 221600256151. The reversal of 221600256140 is 41652006122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8393507 + ... + 8419866.

It is an arithmetic number, because the mean of its divisors is an integer number (19419446970).

Almost surely, 2^221600256140 is an apocalyptic number.

221600256140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221600256140 is an abundant number, since it is smaller than the sum of its proper divisors (244466471140).

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

221600256140 is a wasteful number, since it uses less digits than its factorization.

221600256140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16814041 (or 16814039 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The spelling of 221600256140 in words is "two hundred twenty-one billion, six hundred million, two hundred fifty-six thousand, one hundred forty".