16343047644 has 96 divisors (see below), whose sum is σ = 47715795456. Its totient is φ = 4229556480.

The previous prime is 16343047583. The next prime is 16343047663. The reversal of 16343047644 is 44674034361.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 16343047596 and 16343047605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 224022 + ... + 287874.

It is an arithmetic number, because the mean of its divisors is an integer number (497039536).

Almost surely, 2^16343047644 is an apocalyptic number.

16343047644 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16343047644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23857897728).

16343047644 is an abundant number, since it is smaller than the sum of its proper divisors (31372747812).

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

16343047644 is a wasteful number, since it uses less digits than its factorization.

16343047644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64155 (or 64153 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 42.

The spelling of 16343047644 in words is "sixteen billion, three hundred forty-three million, forty-seven thousand, six hundred forty-four".