16018452502423 has 12 divisors (see below), whose sum is σ = 18640644970752. Its totient is φ = 13724992206240.

The previous prime is 16018452502399. The next prime is 16018452502433. The reversal of 16018452502423 is 32420525481061.

It is not a de Polignac number, because 16018452502423 - 2¹⁷ = 16018452371351 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16018452502423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16018452502433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60699598 + ... + 60962923.

It is an arithmetic number, because the mean of its divisors is an integer number (1553387080896).

Almost surely, 2^{16018452502423} is an apocalyptic number.

16018452502423 is a deficient number, since it is larger than the sum of its proper divisors (2622192468329).

16018452502423 is a wasteful number, since it uses less digits than its factorization.

16018452502423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121665222 (or 121665215 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 43.

Adding to 16018452502423 its reverse (32420525481061), we get a palindrome (48438977983484).

The spelling of 16018452502423 in words is "sixteen trillion, eighteen billion, four hundred fifty-two million, five hundred two thousand, four hundred twenty-three".