16464427385 has 32 divisors (see below), whose sum is σ = 22874406912. Its totient is φ = 11142855360.

The previous prime is 16464427381. The next prime is 16464427403. The reversal of 16464427385 is 58372446461.

It is not a de Polignac number, because 16464427385 - 2² = 16464427381 is a prime.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (16464427381) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3852800 + ... + 3857070.

It is an arithmetic number, because the mean of its divisors is an integer number (714825216).

Almost surely, 2^16464427385 is an apocalyptic number.

It is an amenable number.

16464427385 is a deficient number, since it is larger than the sum of its proper divisors (6409979527).

16464427385 is a wasteful number, since it uses less digits than its factorization.

16464427385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5693.

The product of its digits is 3870720, while the sum is 50.

The spelling of 16464427385 in words is "sixteen billion, four hundred sixty-four million, four hundred twenty-seven thousand, three hundred eighty-five".