16609023376 has 135 divisors (see below), whose sum is σ = 36999443299. Its totient is φ = 7217056000.

The previous prime is 16609023359. The next prime is 16609023377. The reversal of 16609023376 is 67332090661.

The square root of 16609023376 is 128876.

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

It can be written as a sum of positive squares in 4 ways, for example, as 5457663376 + 11151360000 = 73876^2 + 105600^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16609023377) 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, 164445726 + ... + 164445826.

Almost surely, 2^16609023376 is an apocalyptic number.

16609023376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

16609023376 is the 128876-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16609023376

16609023376 is an abundant number, since it is smaller than the sum of its proper divisors (20390419923).

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

16609023376 is a wasteful number, since it uses less digits than its factorization.

16609023376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290 (or 143 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 43.

The spelling of 16609023376 in words is "sixteen billion, six hundred nine million, twenty-three thousand, three hundred seventy-six".