13365458505 has 48 divisors (see below), whose sum is σ = 26925125760. Its totient is φ = 6006357504.

The previous prime is 13365458473. The next prime is 13365458521. The reversal of 13365458505 is 50585456331.

13365458505 is a `hidden beast` number, since 1 + 3 + 3 + 65 + 4 + 585 + 0 + 5 = 666.

It is not a de Polignac number, because 13365458505 - 2⁵ = 13365458473 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 340992 + ... + 378161.

It is an arithmetic number, because the mean of its divisors is an integer number (560940120).

Almost surely, 2^13365458505 is an apocalyptic number.

13365458505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13365458505 is an abundant number, since it is smaller than the sum of its proper divisors (13559667255).

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

13365458505 is a wasteful number, since it uses less digits than its factorization.

13365458505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719230 (or 719227 counting only the distinct ones).

The product of its (nonzero) digits is 1080000, while the sum is 45.

The spelling of 13365458505 in words is "thirteen billion, three hundred sixty-five million, four hundred fifty-eight thousand, five hundred five".