16633778344 has 64 divisors (see below), whose sum is σ = 31910760000. Its totient is φ = 8127052800.

The previous prime is 16633778311. The next prime is 16633778363. The reversal of 16633778344 is 44387733661.

It is a junction number, because it is equal to n+sod(n) for n = 16633778291 and 16633778300.

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 15 ways as a sum of consecutive naturals, for example, 41480544 + ... + 41480944.

It is an arithmetic number, because the mean of its divisors is an integer number (498605625).

Almost surely, 2^16633778344 is an apocalyptic number.

It is an amenable number.

16633778344 is a deficient number, since it is larger than the sum of its proper divisors (15276981656).

16633778344 is a wasteful number, since it uses less digits than its factorization.

16633778344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018 (or 1014 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 52.

The spelling of 16633778344 in words is "sixteen billion, six hundred thirty-three million, seven hundred seventy-eight thousand, three hundred forty-four".