216632486 has 16 divisors (see below), whose sum is σ = 374779680. Its totient is φ = 91990080.

The previous prime is 216632467. The next prime is 216632501. The reversal of 216632486 is 684236612.

216632486 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 69455 + ... + 72506.

It is an arithmetic number, because the mean of its divisors is an integer number (23423730).

Almost surely, 2^216632486 is an apocalyptic number.

216632486 is a deficient number, since it is larger than the sum of its proper divisors (158147194).

216632486 is a wasteful number, since it uses less digits than its factorization.

216632486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142079.

The product of its digits is 82944, while the sum is 38.

The square root of 216632486 is about 14718.4403385685. The cubic root of 216632486 is about 600.5850644990.

The spelling of 216632486 in words is "two hundred sixteen million, six hundred thirty-two thousand, four hundred eighty-six".