16228499949 has 36 divisors (see below), whose sum is σ = 23829405600. Its totient is φ = 10641842640.

The previous prime is 16228499933. The next prime is 16228499957. The reversal of 16228499949 is 94999482261.

It is not a de Polignac number, because 16228499949 - 2⁴ = 16228499933 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16228492949) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 61705192 + ... + 61705454.

Almost surely, 2^16228499949 is an apocalyptic number.

It is an amenable number.

16228499949 is a deficient number, since it is larger than the sum of its proper divisors (7600905651).

16228499949 is a wasteful number, since it uses less digits than its factorization.

16228499949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862 (or 596 counting only the distinct ones).

The product of its digits is 20155392, while the sum is 63.

The spelling of 16228499949 in words is "sixteen billion, two hundred twenty-eight million, four hundred ninety-nine thousand, nine hundred forty-nine".