19551106050 has 48 divisors (see below), whose sum is σ = 55413423552. Its totient is φ = 4468824000.

The previous prime is 19551106031. The next prime is 19551106067. The reversal of 19551106050 is 5060115591.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9309001 + ... + 9311100.

It is an arithmetic number, because the mean of its divisors is an integer number (1154446324).

Almost surely, 2^19551106050 is an apocalyptic number.

19551106050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19551106050 is an abundant number, since it is smaller than the sum of its proper divisors (35862317502).

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

19551106050 is a wasteful number, since it uses less digits than its factorization.

19551106050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18620123 (or 18620118 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 33.

The spelling of 19551106050 in words is "nineteen billion, five hundred fifty-one million, one hundred six thousand, fifty".