16312266406225 has 12 divisors (see below), whose sum is σ = 20227297533916. Its totient is φ = 13049756873280.

The previous prime is 16312266406181. The next prime is 16312266406237. The reversal of 16312266406225 is 52260466221361.

It can be written as a sum of positive squares in 6 ways, for example, as 2035952289424 + 14276314116801 = 1426868^2 + 3778401^2 .

It is not a de Polignac number, because 16312266406225 - 2¹³ = 16312266398033 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5099599 + ... + 7657051.

Almost surely, 2^{16312266406225} is an apocalyptic number.

It is an amenable number.

16312266406225 is a deficient number, since it is larger than the sum of its proper divisors (3915031127691).

16312266406225 is a wasteful number, since it uses less digits than its factorization.

16312266406225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2812596 (or 2812591 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 46.

The spelling of 16312266406225 in words is "sixteen trillion, three hundred twelve billion, two hundred sixty-six million, four hundred six thousand, two hundred twenty-five".