16531253884 has 6 divisors (see below), whose sum is σ = 28929694304. Its totient is φ = 8265626940.

The previous prime is 16531253863. The next prime is 16531253957. The reversal of 16531253884 is 48835213561.

It is a super-3 number, since 3×16531253884³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2066406732 + ... + 2066406739.

Almost surely, 2^16531253884 is an apocalyptic number.

It is an amenable number.

16531253884 is a deficient number, since it is larger than the sum of its proper divisors (12398440420).

16531253884 is a wasteful number, since it uses less digits than its factorization.

16531253884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4132813475 (or 4132813473 counting only the distinct ones).

The product of its digits is 691200, while the sum is 46.

The spelling of 16531253884 in words is "sixteen billion, five hundred thirty-one million, two hundred fifty-three thousand, eight hundred eighty-four".