15215234232168 has 80 divisors (see below), whose sum is σ = 42620582651460. Its totient is φ = 5071287916800.

The previous prime is 15215234232139. The next prime is 15215234232199. The reversal of 15215234232168 is 86123243251251.

It is a happy number.

15215234232168 is a `hidden beast` number, since 1 + 5 + 2 + 1 + 5 + 2 + 3 + 423 + 216 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 8951716931364 + 6263517300804 = 2991942^2 + 2502702^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6180438 + ... + 8284218.

Almost surely, 2^{15215234232168} is an apocalyptic number.

15215234232168 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

15215234232168 is an abundant number, since it is smaller than the sum of its proper divisors (27405348419292).

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

15215234232168 is a wasteful number, since it uses less digits than its factorization.

15215234232168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2114960 (or 2114947 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The spelling of 15215234232168 in words is "fifteen trillion, two hundred fifteen billion, two hundred thirty-four million, two hundred thirty-two thousand, one hundred sixty-eight".