16531532002 has 8 divisors (see below), whose sum is σ = 24834814812. Its totient is φ = 8253260400.

The previous prime is 16531531999. The next prime is 16531532051. The reversal of 16531532002 is 20023513561.

It can be written as a sum of positive squares in 2 ways, for example, as 15830924041 + 700607961 = 125821^2 + 26469^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 6251149 + ... + 6253792.

Almost surely, 2^16531532002 is an apocalyptic number.

16531532002 is a deficient number, since it is larger than the sum of its proper divisors (8303282810).

16531532002 is a wasteful number, since it uses less digits than its factorization.

16531532002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12505604.

The product of its (nonzero) digits is 5400, while the sum is 28.

The spelling of 16531532002 in words is "sixteen billion, five hundred thirty-one million, five hundred thirty-two thousand, two".