13405535251420 has 96 divisors (see below), whose sum is σ = 30346945832448. Its totient is φ = 4944871556352.

The previous prime is 13405535251393. The next prime is 13405535251441. The reversal of 13405535251420 is 2415253550431.

It is a super-2 number, since 2×13405535251420² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 1367488239 + ... + 1367498041.

It is an arithmetic number, because the mean of its divisors is an integer number (316114019088).

Almost surely, 2^{13405535251420} is an apocalyptic number.

13405535251420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13405535251420 is an abundant number, since it is smaller than the sum of its proper divisors (16941410581028).

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

13405535251420 is a wasteful number, since it uses less digits than its factorization.

13405535251420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14459 (or 14457 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 40.

The spelling of 13405535251420 in words is "thirteen trillion, four hundred five billion, five hundred thirty-five million, two hundred fifty-one thousand, four hundred twenty".