16810111625 has 8 divisors (see below), whose sum is σ = 20979019464. Its totient is φ = 13448089200.

The previous prime is 16810111613. The next prime is 16810111709. The reversal of 16810111625 is 52611101861.

It can be written as a sum of positive squares in 4 ways, for example, as 180203776 + 16629907849 = 13424^2 + 128957^2 .

It is not a de Polignac number, because 16810111625 - 2¹⁶ = 16810046089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16810111591 and 16810111600.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67240322 + ... + 67240571.

It is an arithmetic number, because the mean of its divisors is an integer number (2622377433).

Almost surely, 2^16810111625 is an apocalyptic number.

It is an amenable number.

16810111625 is a deficient number, since it is larger than the sum of its proper divisors (4168907839).

16810111625 is an equidigital number, since it uses as much as digits as its factorization.

16810111625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134480908 (or 134480898 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 32.

The spelling of 16810111625 in words is "sixteen billion, eight hundred ten million, one hundred eleven thousand, six hundred twenty-five".