16602216552 has 48 divisors (see below), whose sum is σ = 45580300740. Its totient is φ = 5458261248.

The previous prime is 16602216509. The next prime is 16602216571. The reversal of 16602216552 is 25561220661.

16602216552 is a `hidden beast` number, since 16 + 60 + 22 + 16 + 552 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 16518932676 + 83283876 = 128526^2 + 9126^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1574103 + ... + 1584614.

Almost surely, 2^16602216552 is an apocalyptic number.

16602216552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16602216552 is an abundant number, since it is smaller than the sum of its proper divisors (28978084188).

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

16602216552 is a wasteful number, since it uses less digits than its factorization.

16602216552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3158802 (or 3158795 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 16602216552 in words is "sixteen billion, six hundred two million, two hundred sixteen thousand, five hundred fifty-two".