16266486349 has 4 divisors (see below), whose sum is σ = 16385219964. Its totient is φ = 16147752736.

The previous prime is 16266486289. The next prime is 16266486427. The reversal of 16266486349 is 94368466261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94368466261 = 23813 ⋅3962897.

It can be written as a sum of positive squares in 2 ways, for example, as 10940114025 + 5326372324 = 104595^2 + 72982^2 .

It is a cyclic number.

It is not a de Polignac number, because 16266486349 - 2¹¹ = 16266484301 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16266486349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16266486449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59366602 + ... + 59366875.

It is an arithmetic number, because the mean of its divisors is an integer number (4096304991).

Almost surely, 2^16266486349 is an apocalyptic number.

It is an amenable number.

16266486349 is a deficient number, since it is larger than the sum of its proper divisors (118733615).

16266486349 is a wasteful number, since it uses less digits than its factorization.

16266486349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118733614.

The product of its digits is 8957952, while the sum is 55.

The spelling of 16266486349 in words is "sixteen billion, two hundred sixty-six million, four hundred eighty-six thousand, three hundred forty-nine".