1521064160000 has 720 divisors, whose sum is σ = 4757215803648. Its totient is φ = 471398400000.

The previous prime is 1521064159949. The next prime is 1521064160009. The reversal of 1521064160000 is 614601251.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1521064160009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 4077919814 + ... + 4077920186.

Almost surely, 2^{1521064160000} is an apocalyptic number.

1521064160000 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 1521064160000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2378607901824).

1521064160000 is an abundant number, since it is smaller than the sum of its proper divisors (3236151643648).

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

1521064160000 is an equidigital number, since it uses as much as digits as its factorization.

1521064160000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758 (or 729 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 1521064160000 its reverse (614601251), we get a palindrome (1521678761251).

The spelling of 1521064160000 in words is "one trillion, five hundred twenty-one billion, sixty-four million, one hundred sixty thousand".