16347815232 has 448 divisors, whose sum is σ = 54354862080. Its totient is φ = 4232577024.

The previous prime is 16347815177. The next prime is 16347815233. The reversal of 16347815232 is 23251874361.

It is a tau number, because it is divible by the number of its divisors (448).

It is a super-2 number, since 2×16347815232² (a number of 21 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16347815233) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 63610048 + ... + 63610304.

Almost surely, 2^16347815232 is an apocalyptic number.

16347815232 is a gapful number since it is divisible by the number (12) 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 16347815232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27177431040).

16347815232 is an abundant number, since it is smaller than the sum of its proper divisors (38007046848).

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

16347815232 is a wasteful number, since it uses less digits than its factorization.

16347815232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398 (or 388 counting only the distinct ones).

The product of its digits is 241920, while the sum is 42.

The spelling of 16347815232 in words is "sixteen billion, three hundred forty-seven million, eight hundred fifteen thousand, two hundred thirty-two".