1645134044035 has 16 divisors (see below), whose sum is σ = 2035122893280. Its totient is φ = 1276077024000.

The previous prime is 1645134044017. The next prime is 1645134044041. The reversal of 1645134044035 is 5304404315461.

It is not a de Polignac number, because 1645134044035 - 2¹⁹ = 1645133519747 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, 38175216 + ... + 38218285.

It is an arithmetic number, because the mean of its divisors is an integer number (127195180830).

Almost surely, 2^{1645134044035} is an apocalyptic number.

1645134044035 is a deficient number, since it is larger than the sum of its proper divisors (389988849245).

1645134044035 is an equidigital number, since it uses as much as digits as its factorization.

1645134044035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76393638.

The product of its (nonzero) digits is 345600, while the sum is 40.

Adding to 1645134044035 its reverse (5304404315461), we get a palindrome (6949538359496).

The spelling of 1645134044035 in words is "one trillion, six hundred forty-five billion, one hundred thirty-four million, forty-four thousand, thirty-five".