16538504734731 has 32 divisors (see below), whose sum is σ = 25451715621888. Its totient is φ = 9356759798400.

The previous prime is 16538504734711. The next prime is 16538504734771. The reversal of 16538504734731 is 13743740583561.

It is not a de Polignac number, because 16538504734731 - 2¹⁴ = 16538504718347 is a prime.

It is a super-2 number, since 2×16538504734731² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16538504734711) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 108427786 + ... + 108580208.

It is an arithmetic number, because the mean of its divisors is an integer number (795366113184).

Almost surely, 2^{16538504734731} is an apocalyptic number.

16538504734731 is a deficient number, since it is larger than the sum of its proper divisors (8913210887157).

16538504734731 is a wasteful number, since it uses less digits than its factorization.

16538504734731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203691.

The product of its (nonzero) digits is 25401600, while the sum is 57.

The spelling of 16538504734731 in words is "sixteen trillion, five hundred thirty-eight billion, five hundred four million, seven hundred thirty-four thousand, seven hundred thirty-one".