16531568236012 has 48 divisors (see below), whose sum is σ = 29325140964000. Its totient is φ = 8153418645504.

The previous prime is 16531568235841. The next prime is 16531568236019. The reversal of 16531568236012 is 21063286513561.

It is not an unprimeable number, because it can be changed into a prime (16531568236019) 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 15 ways as a sum of consecutive naturals, for example, 324320064 + ... + 324371032.

It is an arithmetic number, because the mean of its divisors is an integer number (610940436750).

Almost surely, 2^{16531568236012} is an apocalyptic number.

It is an amenable number.

16531568236012 is a deficient number, since it is larger than the sum of its proper divisors (12793572727988).

16531568236012 is a wasteful number, since it uses less digits than its factorization.

16531568236012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53218 (or 53216 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 49.

The spelling of 16531568236012 in words is "sixteen trillion, five hundred thirty-one billion, five hundred sixty-eight million, two hundred thirty-six thousand, twelve".