216164092 has 24 divisors (see below), whose sum is σ = 388100160. Its totient is φ = 105299520.

The previous prime is 216164089. The next prime is 216164093. The reversal of 216164092 is 290461612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216164093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40542 + ... + 45562.

It is an arithmetic number, because the mean of its divisors is an integer number (16170840).

Almost surely, 2^216164092 is an apocalyptic number.

It is an amenable number.

216164092 is a deficient number, since it is larger than the sum of its proper divisors (171936068).

216164092 is a wasteful number, since it uses less digits than its factorization.

216164092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5301 (or 5299 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 216164092 is about 14702.5199200681. The cubic root of 216164092 is about 600.1518985785.

The spelling of 216164092 in words is "two hundred sixteen million, one hundred sixty-four thousand, ninety-two".