16500042050 has 24 divisors (see below), whose sum is σ = 31438620612. Its totient is φ = 6439040000.

The previous prime is 16500042017. The next prime is 16500042067. The reversal of 16500042050 is 5024000561.

It can be written as a sum of positive squares in 6 ways, for example, as 964164601 + 15535877449 = 31051^2 + 124643^2 .

It is a Curzon number.

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, 4022351 + ... + 4026450.

Almost surely, 2^16500042050 is an apocalyptic number.

16500042050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16500042050 is a deficient number, since it is larger than the sum of its proper divisors (14938578562).

16500042050 is a wasteful number, since it uses less digits than its factorization.

16500042050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8048854 (or 8048849 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The spelling of 16500042050 in words is "sixteen billion, five hundred million, forty-two thousand, fifty".