13355465203520 has 448 divisors, whose sum is σ = 36131249007360. Its totient is φ = 4657697587200.

The previous prime is 13355465203513. The next prime is 13355465203523. The reversal of 13355465203520 is 2530256455331.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13355465203523) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13395651662 + ... + 13395652658.

Almost surely, 2^{13355465203520} is an apocalyptic number.

13355465203520 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 13355465203520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18065624503680).

13355465203520 is an abundant number, since it is smaller than the sum of its proper divisors (22775783803840).

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

13355465203520 is a wasteful number, since it uses less digits than its factorization.

13355465203520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1802 (or 1792 counting only the distinct ones).

The product of its (nonzero) digits is 1620000, while the sum is 44.

The spelling of 13355465203520 in words is "thirteen trillion, three hundred fifty-five billion, four hundred sixty-five million, two hundred three thousand, five hundred twenty".