16552105616 has 20 divisors (see below), whose sum is σ = 32077735212. Its totient is φ = 8273980416.

The previous prime is 16552105601. The next prime is 16552105637. The reversal of 16552105616 is 61650125561.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6948889600 + 9603216016 = 83360^2 + 97996^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 16552105616.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62585 + ... + 192408.

Almost surely, 2^16552105616 is an apocalyptic number.

16552105616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16552105616 is a deficient number, since it is larger than the sum of its proper divisors (15525629596).

16552105616 is a wasteful number, since it uses less digits than its factorization.

16552105616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259058 (or 259052 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 38.

The spelling of 16552105616 in words is "sixteen billion, five hundred fifty-two million, one hundred five thousand, six hundred sixteen".