1642244966705 has 16 divisors (see below), whose sum is σ = 2258904835200. Its totient is φ = 1122769251072.

The previous prime is 1642244966699. The next prime is 1642244966741. The reversal of 1642244966705 is 5076694422461.

It is a happy number.

It is not a de Polignac number, because 1642244966705 - 2⁶ = 1642244966641 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69604355 + ... + 69627944.

It is an arithmetic number, because the mean of its divisors is an integer number (141181552200).

Almost surely, 2^{1642244966705} is an apocalyptic number.

It is an amenable number.

1642244966705 is a deficient number, since it is larger than the sum of its proper divisors (616659868495).

1642244966705 is a wasteful number, since it uses less digits than its factorization.

1642244966705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139232648.

The product of its (nonzero) digits is 17418240, while the sum is 56.

The spelling of 1642244966705 in words is "one trillion, six hundred forty-two billion, two hundred forty-four million, nine hundred sixty-six thousand, seven hundred five".