1445521535000 has 160 divisors (see below), whose sum is σ = 3483024138000. Its totient is φ = 562011648000.

The previous prime is 1445521534987. The next prime is 1445521535033. The reversal of 1445521535000 is 5351255441.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 26227472 + ... + 26282528.

Almost surely, 2^{1445521535000} is an apocalyptic number.

1445521535000 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 1445521535000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1741512069000).

1445521535000 is an abundant number, since it is smaller than the sum of its proper divisors (2037502603000).

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

1445521535000 is an equidigital number, since it uses as much as digits as its factorization.

1445521535000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55231 (or 55212 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 35.

The spelling of 1445521535000 in words is "one trillion, four hundred forty-five billion, five hundred twenty-one million, five hundred thirty-five thousand".