16463231104 has 64 divisors (see below), whose sum is σ = 34032481560. Its totient is φ = 7926349824.

The previous prime is 16463231063. The next prime is 16463231117. The reversal of 16463231104 is 40113236461.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 15030760000 + 1432471104 = 122600^2 + 37848^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 441474 + ... + 477310.

Almost surely, 2^16463231104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16463231104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17016240780).

16463231104 is an abundant number, since it is smaller than the sum of its proper divisors (17569250456).

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

16463231104 is an equidigital number, since it uses as much as digits as its factorization.

16463231104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35985 (or 35973 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

Adding to 16463231104 its reverse (40113236461), we get a palindrome (56576467565).

The spelling of 16463231104 in words is "sixteen billion, four hundred sixty-three million, two hundred thirty-one thousand, one hundred four".