13405541451520 has 72 divisors (see below), whose sum is σ = 32111117270064. Its totient is φ = 5362106990592.

The previous prime is 13405541451499. The next prime is 13405541451529. The reversal of 13405541451520 is 2515414550431.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13405541451529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96835792 + ... + 96974128.

It is an arithmetic number, because the mean of its divisors is an integer number (445987739862).

Almost surely, 2^{13405541451520} is an apocalyptic number.

13405541451520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13405541451520 is an abundant number, since it is smaller than the sum of its proper divisors (18705575818544).

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

13405541451520 is an equidigital number, since it uses as much as digits as its factorization.

13405541451520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214065 (or 214051 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 40.

The spelling of 13405541451520 in words is "thirteen trillion, four hundred five billion, five hundred forty-one million, four hundred fifty-one thousand, five hundred twenty".