16249366755217 has 8 divisors (see below), whose sum is σ = 16448229376200. Its totient is φ = 16050866033664.

The previous prime is 16249366755151. The next prime is 16249366755341. The reversal of 16249366755217 is 71255766394261.

It can be written as a sum of positive squares in 4 ways, for example, as 763323731856 + 15486043023361 = 873684^2 + 3935231^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16249366755217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16249366765217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90384508 + ... + 90564109.

It is an arithmetic number, because the mean of its divisors is an integer number (2056028672025).

Almost surely, 2^{16249366755217} is an apocalyptic number.

It is an amenable number.

16249366755217 is a deficient number, since it is larger than the sum of its proper divisors (198862620983).

16249366755217 is a wasteful number, since it uses less digits than its factorization.

16249366755217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180949715.

The product of its digits is 114307200, while the sum is 64.

The spelling of 16249366755217 in words is "sixteen trillion, two hundred forty-nine billion, three hundred sixty-six million, seven hundred fifty-five thousand, two hundred seventeen".