15145550000 has 240 divisors, whose sum is σ = 42409160640. Its totient is φ = 5132160000.

The previous prime is 15145549997. The next prime is 15145550023. The reversal of 15145550000 is 5554151.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 38149802 + ... + 38150198.

It is an arithmetic number, because the mean of its divisors is an integer number (176704836).

Almost surely, 2^15145550000 is an apocalyptic number.

15145550000 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 15145550000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21204580320).

15145550000 is an abundant number, since it is smaller than the sum of its proper divisors (27263610640).

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

15145550000 is an equidigital number, since it uses as much as digits as its factorization.

15145550000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546 (or 520 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 26.

The spelling of 15145550000 in words is "fifteen billion, one hundred forty-five million, five hundred fifty thousand".