16923103612900 has 81 divisors (see below), whose sum is σ = 37114378165137. Its totient is φ = 6697875763200.

The previous prime is 16923103612897. The next prime is 16923103612901. The reversal of 16923103612900 is 921630132961.

It is a happy number.

The square root of 16923103612900 is 4113770.

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

It can be written as a sum of positive squares in 13 ways, for example, as 1633064191396 + 15290039421504 = 1277914^2 + 3910248^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16923103612901) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3990354780 + ... + 3990359020.

Almost surely, 2^{16923103612900} is an apocalyptic number.

16923103612900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16923103612900 is the 4113770-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16923103612900

16923103612900 is an abundant number, since it is smaller than the sum of its proper divisors (20191274552237).

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

16923103612900 is an frugal number, since it uses more digits than its factorization.

16923103612900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8690 (or 4345 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 43.

The spelling of 16923103612900 in words is "sixteen trillion, nine hundred twenty-three billion, one hundred three million, six hundred twelve thousand, nine hundred".