16542313555 has 32 divisors (see below), whose sum is σ = 20389723200. Its totient is φ = 12880207872.

The previous prime is 16542313531. The next prime is 16542313559. The reversal of 16542313555 is 55531324561.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 16542313555 - 2⁵ = 16542313523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16542313559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23331541 + ... + 23332249.

It is an arithmetic number, because the mean of its divisors is an integer number (637178850).

Almost surely, 2^16542313555 is an apocalyptic number.

16542313555 is a deficient number, since it is larger than the sum of its proper divisors (3847409645).

16542313555 is an equidigital number, since it uses as much as digits as its factorization.

16542313555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1543.

The product of its digits is 270000, while the sum is 40.

The spelling of 16542313555 in words is "sixteen billion, five hundred forty-two million, three hundred thirteen thousand, five hundred fifty-five".