216169498 has 32 divisors (see below), whose sum is σ = 348984000. Its totient is φ = 100123776.

The previous prime is 216169493. The next prime is 216169523. The reversal of 216169498 is 894961612.

It is a happy number.

216169498 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 a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (216169493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 413065 + ... + 413587.

It is an arithmetic number, because the mean of its divisors is an integer number (10905750).

Almost surely, 2^216169498 is an apocalyptic number.

216169498 is a deficient number, since it is larger than the sum of its proper divisors (132814502).

216169498 is a wasteful number, since it uses less digits than its factorization.

216169498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766.

The product of its digits is 186624, while the sum is 46.

The square root of 216169498 is about 14702.7037649543. The cubic root of 216169498 is about 600.1569015589.

The spelling of 216169498 in words is "two hundred sixteen million, one hundred sixty-nine thousand, four hundred ninety-eight".