16605120100 has 36 divisors (see below), whose sum is σ = 36057762468. Its totient is φ = 6637504000.

The previous prime is 16605120083. The next prime is 16605120113. The reversal of 16605120100 is 102150661.

It can be written as a sum of positive squares in 6 ways, for example, as 3365856256 + 13239263844 = 58016^2 + 115062^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 92040 + ... + 204160.

It is an arithmetic number, because the mean of its divisors is an integer number (1001604513).

Almost surely, 2^16605120100 is an apocalyptic number.

16605120100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16605120100 is an abundant number, since it is smaller than the sum of its proper divisors (19452642368).

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

16605120100 is a wasteful number, since it uses less digits than its factorization.

16605120100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113616 (or 113609 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

Adding to 16605120100 its reverse (102150661), we get a palindrome (16707270761).

The spelling of 16605120100 in words is "sixteen billion, six hundred five million, one hundred twenty thousand, one hundred".