19940241255 has 16 divisors (see below), whose sum is σ = 34804785024. Its totient is φ = 9667995680.

The previous prime is 19940241187. The next prime is 19940241281. The reversal of 19940241255 is 55214204991.

It is not a de Polignac number, because 19940241255 - 2⁹ = 19940240743 is a prime.

It is a super-2 number, since 2×19940241255² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60424809 + ... + 60425138.

It is an arithmetic number, because the mean of its divisors is an integer number (2175299064).

Almost surely, 2^19940241255 is an apocalyptic number.

19940241255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

19940241255 is a deficient number, since it is larger than the sum of its proper divisors (14864543769).

19940241255 is a wasteful number, since it uses less digits than its factorization.

19940241255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120849966.

The product of its (nonzero) digits is 129600, while the sum is 42.

The spelling of 19940241255 in words is "nineteen billion, nine hundred forty million, two hundred forty-one thousand, two hundred fifty-five".