15157189800 has 480 divisors, whose sum is σ = 56974389120. Its totient is φ = 3720038400.

The previous prime is 15157189769. The next prime is 15157189813. The reversal of 15157189800 is 898175151.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 12943215 + ... + 12944385.

It is an arithmetic number, because the mean of its divisors is an integer number (118696644).

Almost surely, 2^15157189800 is an apocalyptic number.

15157189800 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 15157189800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28487194560).

15157189800 is an abundant number, since it is smaller than the sum of its proper divisors (41817199320).

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

15157189800 is a wasteful number, since it uses less digits than its factorization.

15157189800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1263 (or 1245 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 45.

The spelling of 15157189800 in words is "fifteen billion, one hundred fifty-seven million, one hundred eighty-nine thousand, eight hundred".