13202155505420 has 96 divisors (see below), whose sum is σ = 32548026255360. Its totient is φ = 4403237448960.

The previous prime is 13202155505401. The next prime is 13202155505467. The reversal of 13202155505420 is 2450555120231.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25953725 + ... + 26457515.

It is an arithmetic number, because the mean of its divisors is an integer number (339041940160).

Almost surely, 2^{13202155505420} is an apocalyptic number.

13202155505420 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 13202155505420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16274013127680).

13202155505420 is an abundant number, since it is smaller than the sum of its proper divisors (19345870749940).

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

13202155505420 is a wasteful number, since it uses less digits than its factorization.

13202155505420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508903 (or 508901 counting only the distinct ones).

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

The spelling of 13202155505420 in words is "thirteen trillion, two hundred two billion, one hundred fifty-five million, five hundred five thousand, four hundred twenty".