216716760 has 96 divisors (see below), whose sum is σ = 758525040. Its totient is φ = 53344512.

The previous prime is 216716749. The next prime is 216716777. The reversal of 216716760 is 67617612.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18474 + ... + 27833.

Almost surely, 2^216716760 is an apocalyptic number.

216716760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

216716760 is an abundant number, since it is smaller than the sum of its proper divisors (541808280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

216716760 is a wasteful number, since it uses less digits than its factorization.

216716760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46337 (or 46330 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 216716760 is about 14721.3029314664. The cubic root of 216716760 is about 600.6629339279.

The spelling of 216716760 in words is "two hundred sixteen million, seven hundred sixteen thousand, seven hundred sixty".