13903105616 has 20 divisors (see below), whose sum is σ = 26953230612. Its totient is φ = 6947433216.

The previous prime is 13903105603. The next prime is 13903105621. The reversal of 13903105616 is 61650130931.

It can be written as a sum of positive squares in 2 ways, for example, as 6225841216 + 7677264400 = 78904^2 + 87620^2 .

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, 229541 + ... + 283716.

Almost surely, 2^13903105616 is an apocalyptic number.

13903105616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13903105616 is a deficient number, since it is larger than the sum of its proper divisors (13050124996).

13903105616 is a wasteful number, since it uses less digits than its factorization.

13903105616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514958 (or 514952 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 35.

The spelling of 13903105616 in words is "thirteen billion, nine hundred three million, one hundred five thousand, six hundred sixteen".