16341561328572 has 72 divisors (see below), whose sum is σ = 43488182424960. Its totient is φ = 5159751265440.

The previous prime is 16341561328559. The next prime is 16341561328577. The reversal of 16341561328572 is 27582316514361.

It is a happy number.

16341561328572 is a `hidden beast` number, since 1 + 6 + 3 + 4 + 1 + 5 + 61 + 3 + 2 + 8 + 572 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16341561328577) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3054553 + ... + 6481775.

It is an arithmetic number, because the mean of its divisors is an integer number (604002533680).

Almost surely, 2^{16341561328572} is an apocalyptic number.

16341561328572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16341561328572 is an abundant number, since it is smaller than the sum of its proper divisors (27146621096388).

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

16341561328572 is a wasteful number, since it uses less digits than its factorization.

16341561328572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3434223 (or 3434218 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 54.

The spelling of 16341561328572 in words is "sixteen trillion, three hundred forty-one billion, five hundred sixty-one million, three hundred twenty-eight thousand, five hundred seventy-two".