2216331504 has 40 divisors (see below), whose sum is σ = 6361693520. Its totient is φ = 738777024.

The previous prime is 2216331493. The next prime is 2216331521. The reversal of 2216331504 is 4051336122.

2216331504 is a `hidden beast` number, since 2 + 21 + 633 + 1 + 5 + 0 + 4 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2564767 + ... + 2565630.

It is an arithmetic number, because the mean of its divisors is an integer number (159042338).

Almost surely, 2^2216331504 is an apocalyptic number.

2216331504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2216331504 is an abundant number, since it is smaller than the sum of its proper divisors (4145362016).

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

2216331504 is a wasteful number, since it uses less digits than its factorization.

2216331504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5130414 (or 5130402 counting only the distinct ones).

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

The square root of 2216331504 is about 47077.9301159259. The cubic root of 2216331504 is about 1303.8017909182.

Adding to 2216331504 its reverse (4051336122), we get a palindrome (6267667626).

The spelling of 2216331504 in words is "two billion, two hundred sixteen million, three hundred thirty-one thousand, five hundred four".