16173742450 has 24 divisors (see below), whose sum is σ = 30200240052. Its totient is φ = 6444318720.

The previous prime is 16173742441. The next prime is 16173742477. The reversal of 16173742450 is 5424737161.

16173742450 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 14335991289 + 1837751161 = 119733^2 + 42869^2 .

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 616479 + ... + 642178.

Almost surely, 2^16173742450 is an apocalyptic number.

16173742450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16173742450 is a deficient number, since it is larger than the sum of its proper divisors (14026497602).

16173742450 is a wasteful number, since it uses less digits than its factorization.

16173742450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1258926 (or 1258921 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 40.

The spelling of 16173742450 in words is "sixteen billion, one hundred seventy-three million, seven hundred forty-two thousand, four hundred fifty".