16253451534542 has 4 divisors (see below), whose sum is σ = 24380177301816. Its totient is φ = 8126725767270.

The previous prime is 16253451534539. The next prime is 16253451534581. The reversal of 16253451534542 is 24543515435261.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4063362883634 + ... + 4063362883637.

It is an arithmetic number, because the mean of its divisors is an integer number (6095044325454).

Almost surely, 2^{16253451534542} is an apocalyptic number.

16253451534542 is a deficient number, since it is larger than the sum of its proper divisors (8126725767274).

16253451534542 is an equidigital number, since it uses as much as digits as its factorization.

16253451534542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8126725767273.

The product of its digits is 8640000, while the sum is 50.

The spelling of 16253451534542 in words is "sixteen trillion, two hundred fifty-three billion, four hundred fifty-one million, five hundred thirty-four thousand, five hundred forty-two".