15001420000 has 240 divisors, whose sum is σ = 42719225472. Its totient is φ = 5077440000.

The previous prime is 15001419967. The next prime is 15001420001. The reversal of 15001420000 is 2410051.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15001420001) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 11619355 + ... + 11620645.

Almost surely, 2^15001420000 is an apocalyptic number.

15001420000 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 15001420000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21359612736).

15001420000 is an abundant number, since it is smaller than the sum of its proper divisors (27717805472).

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

15001420000 is an equidigital number, since it uses as much as digits as its factorization.

15001420000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1411 (or 1388 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

Adding to 15001420000 its reverse (2410051), we get a palindrome (15003830051).

The spelling of 15001420000 in words is "fifteen billion, one million, four hundred twenty thousand".