16544455450 has 24 divisors (see below), whose sum is σ = 32110632288. Its totient is φ = 6330052080.

The previous prime is 16544455357. The next prime is 16544455451. The reversal of 16544455450 is 5455444561.

It is a super-2 number, since 2×16544455450² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16544455397 and 16544455406.

It is not an unprimeable number, because it can be changed into a prime (16544455451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7192092 + ... + 7194391.

It is an arithmetic number, because the mean of its divisors is an integer number (1337943012).

Almost surely, 2^16544455450 is an apocalyptic number.

16544455450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16544455450 is a deficient number, since it is larger than the sum of its proper divisors (15566176838).

16544455450 is a wasteful number, since it uses less digits than its factorization.

16544455450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14386518 (or 14386513 counting only the distinct ones).

The product of its (nonzero) digits is 960000, while the sum is 43.

The spelling of 16544455450 in words is "sixteen billion, five hundred forty-four million, four hundred fifty-five thousand, four hundred fifty".