216169532 has 24 divisors (see below), whose sum is σ = 384383664. Its totient is φ = 106359552.

The previous prime is 216169523. The next prime is 216169559. The reversal of 216169532 is 235961612.

It is a junction number, because it is equal to n+sod(n) for n = 216169492 and 216169501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65588 + ... + 68804.

It is an arithmetic number, because the mean of its divisors is an integer number (16015986).

Almost surely, 2^216169532 is an apocalyptic number.

It is an amenable number.

216169532 is a deficient number, since it is larger than the sum of its proper divisors (168214132).

216169532 is a wasteful number, since it uses less digits than its factorization.

216169532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3485 (or 3483 counting only the distinct ones).

The product of its digits is 19440, while the sum is 35.

The square root of 216169532 is about 14702.7049212041. The cubic root of 216169532 is about 600.1569330239.

The spelling of 216169532 in words is "two hundred sixteen million, one hundred sixty-nine thousand, five hundred thirty-two".