216346053 has 64 divisors (see below), whose sum is σ = 376233984. Its totient is φ = 107328000.

The previous prime is 216346051. The next prime is 216346069. The reversal of 216346053 is 350643612.

It is not a de Polignac number, because 216346053 - 2¹ = 216346051 is a prime.

It is a super-2 number, since 2×216346053² = 93611229297357618, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 216346053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216346051) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 501748 + ... + 502178.

It is an arithmetic number, because the mean of its divisors is an integer number (5878656).

Almost surely, 2^216346053 is an apocalyptic number.

It is an amenable number.

216346053 is a deficient number, since it is larger than the sum of its proper divisors (159887931).

216346053 is a wasteful number, since it uses less digits than its factorization.

216346053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 216346053 is about 14708.7067072534. The cubic root of 216346053 is about 600.3202484822.

Adding to 216346053 its reverse (350643612), we get a palindrome (566989665).

The spelling of 216346053 in words is "two hundred sixteen million, three hundred forty-six thousand, fifty-three".