15238663365198 has 256 divisors, whose sum is σ = 39131550259200. Its totient is φ = 3930042074112.

The previous prime is 15238663365187. The next prime is 15238663365239. The reversal of 15238663365198 is 89156336683251.

It is a super-2 number, since 2×15238663365198² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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 127 ways as a sum of consecutive naturals, for example, 245543940 + ... + 245605992.

It is an arithmetic number, because the mean of its divisors is an integer number (152857618200).

Almost surely, 2^{15238663365198} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15238663365198, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19565775129600).

15238663365198 is an abundant number, since it is smaller than the sum of its proper divisors (23892886894002).

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

15238663365198 is a wasteful number, since it uses less digits than its factorization.

15238663365198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62296 (or 62282 counting only the distinct ones).

The product of its digits is 167961600, while the sum is 66.

The spelling of 15238663365198 in words is "fifteen trillion, two hundred thirty-eight billion, six hundred sixty-three million, three hundred sixty-five thousand, one hundred ninety-eight".