15198868866720 has 1536 divisors, whose sum is σ = 61963646976000. Its totient is φ = 3104007782400.

The previous prime is 15198868866637. The next prime is 15198868866721. The reversal of 15198868866720 is 2766886889151.

It is a super-2 number, since 2×15198868866720² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (15198868866721) 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 255 ways as a sum of consecutive naturals, for example, 42336681901 + ... + 42336682259.

It is an arithmetic number, because the mean of its divisors is an integer number (40340916000).

Almost surely, 2^{15198868866720} is an apocalyptic number.

15198868866720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15198868866720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30981823488000).

15198868866720 is an abundant number, since it is smaller than the sum of its proper divisors (46764778109280).

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

15198868866720 is a wasteful number, since it uses less digits than its factorization.

15198868866720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747 (or 725 counting only the distinct ones).

The product of its (nonzero) digits is 557383680, while the sum is 75.

The spelling of 15198868866720 in words is "fifteen trillion, one hundred ninety-eight billion, eight hundred sixty-eight million, eight hundred sixty-six thousand, seven hundred twenty".