15055988868 has 144 divisors (see below), whose sum is σ = 41937255360. Its totient is φ = 4534935552.

The previous prime is 15055988867. The next prime is 15055988869. The reversal of 15055988868 is 86888955051.

15055988868 is a `hidden beast` number, since 15 + 0 + 559 + 8 + 8 + 8 + 68 = 666.

It is an interprime number because it is at equal distance from previous prime (15055988867) and next prime (15055988869).

It is not an unprimeable number, because it can be changed into a prime (15055988867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1547796 + ... + 1557492.

It is an arithmetic number, because the mean of its divisors is an integer number (291230940).

Almost surely, 2^15055988868 is an apocalyptic number.

15055988868 is a gapful number since it is divisible by the number (18) 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 15055988868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20968627680).

15055988868 is an abundant number, since it is smaller than the sum of its proper divisors (26881266492).

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

15055988868 is a wasteful number, since it uses less digits than its factorization.

15055988868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9826 (or 9821 counting only the distinct ones).

The product of its (nonzero) digits is 27648000, while the sum is 63.

The spelling of 15055988868 in words is "fifteen billion, fifty-five million, nine hundred eighty-eight thousand, eight hundred sixty-eight".