16189415552 has 16 divisors (see below), whose sum is σ = 32252351550. Its totient is φ = 8094707712.

The previous prime is 16189415549. The next prime is 16189415579. The reversal of 16189415552 is 25551498161.

It can be written as a sum of positive squares in only one way, i.e., 12059553856 + 4129861696 = 109816^2 + 64264^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a junction number, because it is equal to n+sod(n) for n = 16189415497 and 16189415506.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63239777 + ... + 63240032.

Almost surely, 2^16189415552 is an apocalyptic number.

It is an amenable number.

16189415552 is a deficient number, since it is larger than the sum of its proper divisors (16062935998).

16189415552 is an equidigital number, since it uses as much as digits as its factorization.

16189415552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126479823 (or 126479811 counting only the distinct ones).

The product of its digits is 432000, while the sum is 47.

The spelling of 16189415552 in words is "sixteen billion, one hundred eighty-nine million, four hundred fifteen thousand, five hundred fifty-two".