16531305045 has 16 divisors (see below), whose sum is σ = 26565596160. Its totient is φ = 8778193344.

The previous prime is 16531304983. The next prime is 16531305067. The reversal of 16531305045 is 54050313561.

It is not a de Polignac number, because 16531305045 - 2⁶ = 16531304981 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16531304997 and 16531305015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2402869 + ... + 2409738.

It is an arithmetic number, because the mean of its divisors is an integer number (1660349760).

Almost surely, 2^16531305045 is an apocalyptic number.

16531305045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16531305045 is a deficient number, since it is larger than the sum of its proper divisors (10034291115).

16531305045 is a wasteful number, since it uses less digits than its factorization.

16531305045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4812844.

The product of its (nonzero) digits is 27000, while the sum is 33.

The spelling of 16531305045 in words is "sixteen billion, five hundred thirty-one million, three hundred five thousand, forty-five".