19955800214 has 32 divisors (see below), whose sum is σ = 34671636480. Its totient is φ = 8437242528.

The previous prime is 19955800213. The next prime is 19955800231. The reversal of 19955800214 is 41200855991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19955800213) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1460864 + ... + 1474460.

It is an arithmetic number, because the mean of its divisors is an integer number (1083488640).

Almost surely, 2^19955800214 is an apocalyptic number.

19955800214 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

19955800214 is a deficient number, since it is larger than the sum of its proper divisors (14715836266).

19955800214 is a wasteful number, since it uses less digits than its factorization.

19955800214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15012.

The product of its (nonzero) digits is 129600, while the sum is 44.

The spelling of 19955800214 in words is "nineteen billion, nine hundred fifty-five million, eight hundred thousand, two hundred fourteen".