19858552116 has 48 divisors (see below), whose sum is σ = 49984243008. Its totient is φ = 6100128000.

The previous prime is 19858552093. The next prime is 19858552117. The reversal of 19858552116 is 61125585891.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19858552117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12150 + ... + 199661.

It is an arithmetic number, because the mean of its divisors is an integer number (1041338396).

Almost surely, 2^19858552116 is an apocalyptic number.

It is an amenable number.

19858552116 is an abundant number, since it is smaller than the sum of its proper divisors (30125690892).

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

19858552116 is a wasteful number, since it uses less digits than its factorization.

19858552116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212432 (or 212430 counting only the distinct ones).

The product of its digits is 864000, while the sum is 51.

The spelling of 19858552116 in words is "nineteen billion, eight hundred fifty-eight million, five hundred fifty-two thousand, one hundred sixteen".