216360504 has 32 divisors (see below), whose sum is σ = 601002000. Its totient is φ = 72120096.

The previous prime is 216360491. The next prime is 216360509. The reversal of 216360504 is 405063612.

216360504 is a `hidden beast` number, since 21 + 636 + 0 + 5 + 0 + 4 = 666.

216360504 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×216360504² = 93623735382268032, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216360509) 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, 500619 + ... + 501050.

Almost surely, 2^216360504 is an apocalyptic number.

216360504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

216360504 is an abundant number, since it is smaller than the sum of its proper divisors (384641496).

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

216360504 is a wasteful number, since it uses less digits than its factorization.

216360504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001684 (or 1001674 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 216360504 is about 14709.1979387049. The cubic root of 216360504 is about 600.3336144679. Note that the first 3 decimals are identical.

The spelling of 216360504 in words is "two hundred sixteen million, three hundred sixty thousand, five hundred four".