1800063216 has 120 divisors (see below), whose sum is σ = 6010485840. Its totient is φ = 514297728.

The previous prime is 1800063197. The next prime is 1800063217. The reversal of 1800063216 is 6123600081.

1800063216 is a `hidden beast` number, since 18 + 0 + 0 + 0 + 632 + 16 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1800063216.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1800063217) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21351 + ... + 63686.

It is an arithmetic number, because the mean of its divisors is an integer number (50087382).

Almost surely, 2^1800063216 is an apocalyptic number.

1800063216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1800063216 is an abundant number, since it is smaller than the sum of its proper divisors (4210422624).

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

1800063216 is a wasteful number, since it uses less digits than its factorization.

1800063216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85068 (or 85049 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 1800063216 is about 42427.1518723565. The cubic root of 1800063216 is about 1216.4546394102.

Adding to 1800063216 its reverse (6123600081), we get a palindrome (7923663297).

The spelling of 1800063216 in words is "one billion, eight hundred million, sixty-three thousand, two hundred sixteen".