15212132342406 has 16 divisors (see below), whose sum is σ = 33804738538800. Its totient is φ = 5070710780784.

The previous prime is 15212132342389. The next prime is 15212132342447. The reversal of 15212132342406 is 60424323121251.

It is a happy number.

15212132342406 is a `hidden beast` number, since 1 + 5 + 2 + 1 + 2 + 13 + 234 + 2 + 406 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140853077191 + ... + 140853077298.

It is an arithmetic number, because the mean of its divisors is an integer number (2112796158675).

Almost surely, 2^{15212132342406} is an apocalyptic number.

15212132342406 is an abundant number, since it is smaller than the sum of its proper divisors (18592606196394).

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

15212132342406 is a wasteful number, since it uses less digits than its factorization.

15212132342406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281706154500 (or 281706154494 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

Adding to 15212132342406 its reverse (60424323121251), we get a palindrome (75636455463657).

The spelling of 15212132342406 in words is "fifteen trillion, two hundred twelve billion, one hundred thirty-two million, three hundred forty-two thousand, four hundred six".