16465249133 has 6 divisors (see below), whose sum is σ = 16519482126. Its totient is φ = 16411030872.

The previous prime is 16465249127. The next prime is 16465249147. The reversal of 16465249133 is 33194256461.

It can be written as a sum of positive squares in only one way, i.e., 10180406404 + 6284842729 = 100898^2 + 79277^2 .

It is not a de Polignac number, because 16465249133 - 2³⁰ = 15391507309 is a prime.

It is a super-2 number, since 2×16465249133² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16465249123) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2281016 + ... + 2288222.

It is an arithmetic number, because the mean of its divisors is an integer number (2753247021).

Almost surely, 2^16465249133 is an apocalyptic number.

It is an amenable number.

16465249133 is a deficient number, since it is larger than the sum of its proper divisors (54232993).

16465249133 is an frugal number, since it uses more digits than its factorization.

16465249133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14731 (or 7524 counting only the distinct ones).

The product of its digits is 466560, while the sum is 44.

The spelling of 16465249133 in words is "sixteen billion, four hundred sixty-five million, two hundred forty-nine thousand, one hundred thirty-three".