16145633456 has 20 divisors (see below), whose sum is σ = 31559001672. Its totient is φ = 8001374976.

The previous prime is 16145633447. The next prime is 16145633459. The reversal of 16145633456 is 65433654161.

It is not an unprimeable number, because it can be changed into a prime (16145633459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4463246 + ... + 4466861.

Almost surely, 2^16145633456 is an apocalyptic number.

16145633456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16145633456 is a deficient number, since it is larger than the sum of its proper divisors (15413368216).

16145633456 is a wasteful number, since it uses less digits than its factorization.

16145633456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8930228 (or 8930222 counting only the distinct ones).

The product of its digits is 777600, while the sum is 44.

The spelling of 16145633456 in words is "sixteen billion, one hundred forty-five million, six hundred thirty-three thousand, four hundred fifty-six".