216051650 has 24 divisors (see below), whose sum is σ = 419330304. Its totient is φ = 82662800.

The previous prime is 216051643. The next prime is 216051659. The reversal of 216051650 is 56150612.

216051650 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (216051659) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 92786 + ... + 95085.

It is an arithmetic number, because the mean of its divisors is an integer number (17472096).

Almost surely, 2^216051650 is an apocalyptic number.

216051650 is a deficient number, since it is larger than the sum of its proper divisors (203278654).

216051650 is a wasteful number, since it uses less digits than its factorization.

216051650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187906 (or 187901 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 216051650 is about 14698.6955203515. The cubic root of 216051650 is about 600.0478202627.

The spelling of 216051650 in words is "two hundred sixteen million, fifty-one thousand, six hundred fifty".