16344920394 has 32 divisors (see below), whose sum is σ = 39624050880. Its totient is φ = 4953006000.

The previous prime is 16344920363. The next prime is 16344920413. The reversal of 16344920394 is 49302944361.

16344920394 is a `hidden beast` number, since 1 + 634 + 4 + 9 + 2 + 0 + 3 + 9 + 4 = 666.

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, 13757757 + ... + 13758944.

It is an arithmetic number, because the mean of its divisors is an integer number (1238251590).

Almost surely, 2^16344920394 is an apocalyptic number.

16344920394 is an abundant number, since it is smaller than the sum of its proper divisors (23279130486).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16344920394 is a wasteful number, since it uses less digits than its factorization.

16344920394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27516723 (or 27516717 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 45.

The spelling of 16344920394 in words is "sixteen billion, three hundred forty-four million, nine hundred twenty thousand, three hundred ninety-four".