16531106112751 has 16 divisors (see below), whose sum is σ = 17220159684000. Its totient is φ = 15850238544000.

The previous prime is 16531106112749. The next prime is 16531106112757. The reversal of 16531106112751 is 15721160113561.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 16531106112751 - 2¹ = 16531106112749 is a prime.

It is a super-2 number, since 2×16531106112751² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16531106112757) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1433200 + ... + 5925898.

It is an arithmetic number, because the mean of its divisors is an integer number (1076259980250).

Almost surely, 2^{16531106112751} is an apocalyptic number.

16531106112751 is a deficient number, since it is larger than the sum of its proper divisors (689053571249).

16531106112751 is a wasteful number, since it uses less digits than its factorization.

16531106112751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4493610.

The product of its (nonzero) digits is 37800, while the sum is 40.

The spelling of 16531106112751 in words is "sixteen trillion, five hundred thirty-one billion, one hundred six million, one hundred twelve thousand, seven hundred fifty-one".