15455606642005 has 4 divisors (see below), whose sum is σ = 18546727970412. Its totient is φ = 12364485313600.

The previous prime is 15455606641997. The next prime is 15455606642027. The reversal of 15455606642005 is 50024660655451.

15455606642005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10044595601041 + 5411011040964 = 3169321^2 + 2326158^2 .

It is not a de Polignac number, because 15455606642005 - 2³ = 15455606641997 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15455606642005.

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, 1545560664196 + ... + 1545560664205.

It is an arithmetic number, because the mean of its divisors is an integer number (4636681992603).

Almost surely, 2^{15455606642005} is an apocalyptic number.

It is an amenable number.

15455606642005 is a deficient number, since it is larger than the sum of its proper divisors (3091121328407).

15455606642005 is an equidigital number, since it uses as much as digits as its factorization.

15455606642005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3091121328406.

The product of its (nonzero) digits is 4320000, while the sum is 49.

The spelling of 15455606642005 in words is "fifteen trillion, four hundred fifty-five billion, six hundred six million, six hundred forty-two thousand, five".