1605056664995 has 16 divisors (see below), whose sum is σ = 2201454671808. Its totient is φ = 1100493233280.

The previous prime is 1605056664941. The next prime is 1605056665061. The reversal of 1605056664995 is 5994666505061.

It is not a de Polignac number, because 1605056664995 - 2¹⁶ = 1605056599459 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2104124 + ... + 2763593.

It is an arithmetic number, because the mean of its divisors is an integer number (137590916988).

Almost surely, 2^{1605056664995} is an apocalyptic number.

1605056664995 is a deficient number, since it is larger than the sum of its proper divisors (596398006813).

1605056664995 is an equidigital number, since it uses as much as digits as its factorization.

1605056664995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4877150.

The product of its (nonzero) digits is 52488000, while the sum is 62.

The spelling of 1605056664995 in words is "one trillion, six hundred five billion, fifty-six million, six hundred sixty-four thousand, nine hundred ninety-five".