19001612116 has 12 divisors (see below), whose sum is σ = 34399470420. Its totient is φ = 9173192000.

The previous prime is 19001612089. The next prime is 19001612167. The reversal of 19001612116 is 61121610091.

It can be written as a sum of positive squares in 2 ways, for example, as 12996912016 + 6004700100 = 114004^2 + 77490^2 .

It is a super-2 number, since 2×19001612116² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 81903385 + ... + 81903616.

It is an arithmetic number, because the mean of its divisors is an integer number (2866622535).

Almost surely, 2^19001612116 is an apocalyptic number.

It is an amenable number.

19001612116 is a deficient number, since it is larger than the sum of its proper divisors (15397858304).

19001612116 is a wasteful number, since it uses less digits than its factorization.

19001612116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163807034 (or 163807032 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 28.

The spelling of 19001612116 in words is "nineteen billion, one million, six hundred twelve thousand, one hundred sixteen".