13545423252220 has 12 divisors (see below), whose sum is σ = 28445388829704. Its totient is φ = 5418169300880.

The previous prime is 13545423252217. The next prime is 13545423252253. The reversal of 13545423252220 is 2225232454531.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 338635581286 + ... + 338635581325.

It is an arithmetic number, because the mean of its divisors is an integer number (2370449069142).

Almost surely, 2^{13545423252220} is an apocalyptic number.

13545423252220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13545423252220 is an abundant number, since it is smaller than the sum of its proper divisors (14899965577484).

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

13545423252220 is a wasteful number, since it uses less digits than its factorization.

13545423252220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677271162620 (or 677271162618 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 40.

The spelling of 13545423252220 in words is "thirteen trillion, five hundred forty-five billion, four hundred twenty-three million, two hundred fifty-two thousand, two hundred twenty".