16341331644 has 72 divisors (see below), whose sum is σ = 46280405808. Its totient is φ = 4818078720.

The previous prime is 16341331639. The next prime is 16341331673. The reversal of 16341331644 is 44613314361.

16341331644 is a `hidden beast` number, since 1 + 6 + 3 + 4 + 1 + 3 + 3 + 1 + 644 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 16341331599 and 16341331608.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 542997 + ... + 572300.

It is an arithmetic number, because the mean of its divisors is an integer number (642783414).

Almost surely, 2^16341331644 is an apocalyptic number.

It is an amenable number.

16341331644 is an abundant number, since it is smaller than the sum of its proper divisors (29939074164).

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

16341331644 is a wasteful number, since it uses less digits than its factorization.

16341331644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115355 (or 1115350 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

The spelling of 16341331644 in words is "sixteen billion, three hundred forty-one million, three hundred thirty-one thousand, six hundred forty-four".