16531535336 has 16 divisors (see below), whose sum is σ = 31504771140. Its totient is φ = 8130263040.

The previous prime is 16531535297. The next prime is 16531535393. The reversal of 16531535336 is 63353513561.

It can be written as a sum of positive squares in 2 ways, for example, as 15264602500 + 1266932836 = 123550^2 + 35594^2 .

It is a junction number, because it is equal to n+sod(n) for n = 16531535293 and 16531535302.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16937561 + ... + 16938536.

Almost surely, 2^16531535336 is an apocalyptic number.

It is an amenable number.

16531535336 is a deficient number, since it is larger than the sum of its proper divisors (14973235804).

16531535336 is a wasteful number, since it uses less digits than its factorization.

16531535336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33876164 (or 33876160 counting only the distinct ones).

The product of its digits is 364500, while the sum is 41.

The spelling of 16531535336 in words is "sixteen billion, five hundred thirty-one million, five hundred thirty-five thousand, three hundred thirty-six".