16102636225 has 72 divisors (see below), whose sum is σ = 22592913336. Its totient is φ = 11306880000.

The previous prime is 16102636219. The next prime is 16102636261. The reversal of 16102636225 is 52263620161.

It can be written as a sum of positive squares in 12 ways, for example, as 9842028849 + 6260607376 = 99207^2 + 79124^2 .

It is not a de Polignac number, because 16102636225 - 2¹⁹ = 16102111937 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 106639900 + ... + 106640050.

It is an arithmetic number, because the mean of its divisors is an integer number (313790463).

Almost surely, 2^16102636225 is an apocalyptic number.

It is an amenable number.

16102636225 is a deficient number, since it is larger than the sum of its proper divisors (6490277111).

16102636225 is a wasteful number, since it uses less digits than its factorization.

16102636225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419 (or 263 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 16102636225 in words is "sixteen billion, one hundred two million, six hundred thirty-six thousand, two hundred twenty-five".