216603014164 has 24 divisors (see below), whose sum is σ = 380007075560. Its totient is φ = 108029666304.

The previous prime is 216603014149. The next prime is 216603014171. The reversal of 216603014164 is 461410306612.

It can be written as a sum of positive squares in 4 ways, for example, as 731269764 + 215871744400 = 27042^2 + 464620^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11818672 + ... + 11836984.

Almost surely, 2^216603014164 is an apocalyptic number.

It is an amenable number.

216603014164 is a deficient number, since it is larger than the sum of its proper divisors (163404061396).

216603014164 is a wasteful number, since it uses less digits than its factorization.

216603014164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25579 (or 25577 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The spelling of 216603014164 in words is "two hundred sixteen billion, six hundred three million, fourteen thousand, one hundred sixty-four".