15401521200 has 240 divisors, whose sum is σ = 53733123360. Its totient is φ = 3748208640.

The previous prime is 15401521169. The next prime is 15401521253. The reversal of 15401521200 is 212510451.

It is a tau number, because it is divible by the number of its divisors (240).

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, 1382854 + ... + 1393946.

It is an arithmetic number, because the mean of its divisors is an integer number (223888014).

Almost surely, 2^15401521200 is an apocalyptic number.

15401521200 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 15401521200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26866561680).

15401521200 is an abundant number, since it is smaller than the sum of its proper divisors (38331602160).

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

15401521200 is a wasteful number, since it uses less digits than its factorization.

15401521200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11216 (or 11205 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

The spelling of 15401521200 in words is "fifteen billion, four hundred one million, five hundred twenty-one thousand, two hundred".