216250646 has 16 divisors (see below), whose sum is σ = 346737888. Its totient is φ = 100900800.

The previous prime is 216250621. The next prime is 216250649. The reversal of 216250646 is 646052612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216250649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55445 + ... + 59216.

It is an arithmetic number, because the mean of its divisors is an integer number (21671118).

Almost surely, 2^216250646 is an apocalyptic number.

216250646 is a deficient number, since it is larger than the sum of its proper divisors (130487242).

216250646 is a wasteful number, since it uses less digits than its factorization.

216250646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114727.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 216250646 is about 14705.4631344953. The cubic root of 216250646 is about 600.2319899192.

The spelling of 216250646 in words is "two hundred sixteen million, two hundred fifty thousand, six hundred forty-six".