16152164221212 has 72 divisors (see below), whose sum is σ = 40983864994800. Its totient is φ = 5363665325568.

The previous prime is 16152164221153. The next prime is 16152164221231. The reversal of 16152164221212 is 21212246125161.

16152164221212 is a `hidden beast` number, since 1 + 6 + 1 + 5 + 2 + 1 + 642 + 2 + 1 + 2 + 1 + 2 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17571364 + ... + 18467732.

It is an arithmetic number, because the mean of its divisors is an integer number (569220347150).

Almost surely, 2^{16152164221212} is an apocalyptic number.

16152164221212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16152164221212 is an abundant number, since it is smaller than the sum of its proper divisors (24831700773588).

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

16152164221212 is a wasteful number, since it uses less digits than its factorization.

16152164221212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898275 (or 898270 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The spelling of 16152164221212 in words is "sixteen trillion, one hundred fifty-two billion, one hundred sixty-four million, two hundred twenty-one thousand, two hundred twelve".