16690056100 has 27 divisors (see below), whose sum is σ = 36220225377. Its totient is φ = 6675505680.

The previous prime is 16690056073. The next prime is 16690056101. The reversal of 16690056100 is 165009661.

The square root of 16690056100 is 129190.

It is a perfect power (a square), and thus also a powerful number.

16690056100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 6008420196 + 10681635904 = 77514^2 + 103352^2 .

It is a super-2 number, since 2×16690056100² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16690056101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1285441 + ... + 1298359.

Almost surely, 2^16690056100 is an apocalyptic number.

16690056100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16690056100 is the 129190-th square number.

It is an amenable number.

16690056100 is an abundant number, since it is smaller than the sum of its proper divisors (19530169277).

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

16690056100 is an frugal number, since it uses more digits than its factorization.

16690056100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25852 (or 12926 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 34.

The spelling of 16690056100 in words is "sixteen billion, six hundred ninety million, fifty-six thousand, one hundred".