16534453253 has 4 divisors (see below), whose sum is σ = 16548574368. Its totient is φ = 16520332140.

The previous prime is 16534453241. The next prime is 16534453303. The reversal of 16534453253 is 35235443561.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16534453253 - 2⁴ = 16534453237 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 16534453253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16534453753) 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, 7058801 + ... + 7061142.

It is an arithmetic number, because the mean of its divisors is an integer number (4137143592).

Almost surely, 2^16534453253 is an apocalyptic number.

It is an amenable number.

16534453253 is a deficient number, since it is larger than the sum of its proper divisors (14121115).

16534453253 is a wasteful number, since it uses less digits than its factorization.

16534453253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14121114.

The product of its digits is 648000, while the sum is 41.

The spelling of 16534453253 in words is "sixteen billion, five hundred thirty-four million, four hundred fifty-three thousand, two hundred fifty-three".