15654313212 has 12 divisors (see below), whose sum is σ = 36526730856. Its totient is φ = 5218104400.

The previous prime is 15654313193. The next prime is 15654313217. The reversal of 15654313212 is 21231345651.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15654313217) 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 3 ways as a sum of consecutive naturals, for example, 652263039 + ... + 652263062.

It is an arithmetic number, because the mean of its divisors is an integer number (3043894238).

Almost surely, 2^15654313212 is an apocalyptic number.

15654313212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15654313212 is an abundant number, since it is smaller than the sum of its proper divisors (20872417644).

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

15654313212 is a wasteful number, since it uses less digits than its factorization.

15654313212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1304526108 (or 1304526106 counting only the distinct ones).

The product of its digits is 21600, while the sum is 33.

Adding to 15654313212 its reverse (21231345651), we get a palindrome (36885658863).

The spelling of 15654313212 in words is "fifteen billion, six hundred fifty-four million, three hundred thirteen thousand, two hundred twelve".