19551360112 has 20 divisors (see below), whose sum is σ = 38077039600. Its totient is φ = 9725027328.

The previous prime is 19551360097. The next prime is 19551360121. The reversal of 19551360112 is 21106315591.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3162612 + ... + 3168787.

It is an arithmetic number, because the mean of its divisors is an integer number (1903851980).

Almost surely, 2^19551360112 is an apocalyptic number.

It is an amenable number.

19551360112 is a deficient number, since it is larger than the sum of its proper divisors (18525679488).

19551360112 is a wasteful number, since it uses less digits than its factorization.

19551360112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6331600 (or 6331594 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 34.

The spelling of 19551360112 in words is "nineteen billion, five hundred fifty-one million, three hundred sixty thousand, one hundred twelve".