1605464604115 has 4 divisors (see below), whose sum is σ = 1926557524944. Its totient is φ = 1284371683288.

The previous prime is 1605464604113. The next prime is 1605464604199. The reversal of 1605464604115 is 5114064645061.

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

It is a cyclic number.

It is not a de Polignac number, because 1605464604115 - 2¹ = 1605464604113 is a prime.

It is a super-2 number, since 2×1605464604115² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1605464604113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160546460407 + ... + 160546460416.

It is an arithmetic number, because the mean of its divisors is an integer number (481639381236).

Almost surely, 2^{1605464604115} is an apocalyptic number.

1605464604115 is a deficient number, since it is larger than the sum of its proper divisors (321092920829).

1605464604115 is an equidigital number, since it uses as much as digits as its factorization.

1605464604115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321092920828.

The product of its (nonzero) digits is 345600, while the sum is 43.

The spelling of 1605464604115 in words is "one trillion, six hundred five billion, four hundred sixty-four million, six hundred four thousand, one hundred fifteen".