16445208550 has 24 divisors (see below), whose sum is σ = 30775760136. Its totient is φ = 6537723840.

The previous prime is 16445208457. The next prime is 16445208599. The reversal of 16445208550 is 5580254461.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1000759 + ... + 1017058.

It is an arithmetic number, because the mean of its divisors is an integer number (1282323339).

Almost surely, 2^16445208550 is an apocalyptic number.

16445208550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16445208550 is a deficient number, since it is larger than the sum of its proper divisors (14330551586).

16445208550 is a wasteful number, since it uses less digits than its factorization.

16445208550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2017992 (or 2017987 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 40.

The spelling of 16445208550 in words is "sixteen billion, four hundred forty-five million, two hundred eight thousand, five hundred fifty".