13445520330000 has 800 divisors, whose sum is σ = 48146544673920. Its totient is φ = 3204956160000.

The previous prime is 13445520329977. The next prime is 13445520330023. The reversal of 13445520330000 is 3302554431.

It is an interprime number because it is at equal distance from previous prime (13445520329977) and next prime (13445520330023).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a self number, because there is not a number n which added to its sum of digits gives 13445520330000.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 10430969356 + ... + 10430970644.

Almost surely, 2^{13445520330000} is an apocalyptic number.

13445520330000 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 13445520330000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24073272336960).

13445520330000 is an abundant number, since it is smaller than the sum of its proper divisors (34701024343920).

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

13445520330000 is a wasteful number, since it uses less digits than its factorization.

13445520330000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1837 (or 1816 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 30.

Adding to 13445520330000 its reverse (3302554431), we get a palindrome (13448822884431).

The spelling of 13445520330000 in words is "thirteen trillion, four hundred forty-five billion, five hundred twenty million, three hundred thirty thousand".