15045421050000 has 720 divisors, whose sum is σ = 57797079500160. Its totient is φ = 3623040000000.

The previous prime is 15045421049921. The next prime is 15045421050001. The reversal of 15045421050000 is 5012454051.

15045421050000 is a `hidden beast` number, since 1 + 504 + 54 + 2 + 105 + 0 + 0 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (720).

It is not an unprimeable number, because it can be changed into a prime (15045421050001) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 747439936 + ... + 747460064.

It is an arithmetic number, because the mean of its divisors is an integer number (80273721528).

Almost surely, 2^{15045421050000} is an apocalyptic number.

15045421050000 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 15045421050000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28898539750080).

15045421050000 is an abundant number, since it is smaller than the sum of its proper divisors (42751658450160).

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

15045421050000 is a wasteful number, since it uses less digits than its factorization.

15045421050000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20330 (or 20301 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The spelling of 15045421050000 in words is "fifteen trillion, forty-five billion, four hundred twenty-one million, fifty thousand".