15451040000 has 180 divisors, whose sum is σ = 42048227760. Its totient is φ = 5617920000.

The previous prime is 15451039993. The next prime is 15451040009. The reversal of 15451040000 is 4015451.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (15451040009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1755611 + ... + 1764389.

Almost surely, 2^15451040000 is an apocalyptic number.

15451040000 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 15451040000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21024113880).

15451040000 is an abundant number, since it is smaller than the sum of its proper divisors (26597187760).

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

15451040000 is an frugal number, since it uses more digits than its factorization.

15451040000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8826 (or 8797 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

Adding to 15451040000 its reverse (4015451), we get a palindrome (15455055451).

The spelling of 15451040000 in words is "fifteen billion, four hundred fifty-one million, forty thousand".