115421204015605 has 16 divisors (see below), whose sum is σ = 138808188288000. Its totient is φ = 92135140868160.

The previous prime is 115421204015603. The next prime is 115421204015627. The reversal of 115421204015605 is 506510402124511.

It is not a de Polignac number, because 115421204015605 - 2¹ = 115421204015603 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115421204015603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150824026 + ... + 151587364.

It is an arithmetic number, because the mean of its divisors is an integer number (8675511768000).

Almost surely, 2^{115421204015605} is an apocalyptic number.

It is an amenable number.

115421204015605 is a deficient number, since it is larger than the sum of its proper divisors (23386984272395).

115421204015605 is an equidigital number, since it uses as much as digits as its factorization.

115421204015605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829404.

The product of its (nonzero) digits is 48000, while the sum is 37.

The spelling of 115421204015605 in words is "one hundred fifteen trillion, four hundred twenty-one billion, two hundred four million, fifteen thousand, six hundred five".