1605422022645 has 64 divisors (see below), whose sum is σ = 2973739991040. Its totient is φ = 724385376000.

The previous prime is 1605422022643. The next prime is 1605422022649. The reversal of 1605422022645 is 5462202245061.

It is not a de Polignac number, because 1605422022645 - 2¹ = 1605422022643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1605422022641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 27352480 + ... + 27411110.

It is an arithmetic number, because the mean of its divisors is an integer number (46464687360).

Almost surely, 2^{1605422022645} is an apocalyptic number.

1605422022645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1605422022645 is a deficient number, since it is larger than the sum of its proper divisors (1368317968395).

1605422022645 is a wasteful number, since it uses less digits than its factorization.

1605422022645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62026.

The product of its (nonzero) digits is 230400, while the sum is 39.

The spelling of 1605422022645 in words is "one trillion, six hundred five billion, four hundred twenty-two million, twenty-two thousand, six hundred forty-five".