216163610 has 32 divisors (see below), whose sum is σ = 426142080. Its totient is φ = 78458688.

The previous prime is 216163601. The next prime is 216163613. The reversal of 216163610 is 16361612.

It is a Harshad number since it is a multiple of its sum of digits (26).

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

It is a self number, because there is not a number n which added to its sum of digits gives 216163610.

It is not an unprimeable number, because it can be changed into a prime (216163613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6422 + ... + 21761.

It is an arithmetic number, because the mean of its divisors is an integer number (13316940).

Almost surely, 2^216163610 is an apocalyptic number.

216163610 is a deficient number, since it is larger than the sum of its proper divisors (209978470).

216163610 is a wasteful number, since it uses less digits than its factorization.

216163610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28262.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 216163610 is about 14702.5035283111. The cubic root of 216163610 is about 600.1514525078.

The spelling of 216163610 in words is "two hundred sixteen million, one hundred sixty-three thousand, six hundred ten".