16545724057494 has 32 divisors (see below), whose sum is σ = 36771221706240. Its totient is φ = 5514799449096.

The previous prime is 16545724057493. The next prime is 16545724057567. The reversal of 16545724057494 is 49475042754561.

16545724057494 is a `hidden beast` number, since 1 + 6 + 5 + 4 + 5 + 72 + 405 + 74 + 94 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16545724057493) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 11594554 + ... + 12943149.

It is an arithmetic number, because the mean of its divisors is an integer number (1149100678320).

Almost surely, 2^{16545724057494} is an apocalyptic number.

16545724057494 is an abundant number, since it is smaller than the sum of its proper divisors (20225497648746).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16545724057494 is a wasteful number, since it uses less digits than its factorization.

16545724057494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24550201 (or 24550195 counting only the distinct ones).

The product of its (nonzero) digits is 169344000, while the sum is 63.

The spelling of 16545724057494 in words is "sixteen trillion, five hundred forty-five billion, seven hundred twenty-four million, fifty-seven thousand, four hundred ninety-four".