1605432765103 has 16 divisors (see below), whose sum is σ = 1665893965824. Its totient is φ = 1545516110880.

The previous prime is 1605432765089. The next prime is 1605432765119. The reversal of 1605432765103 is 3015672345061.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1605432765103 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1605432765103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1605432765173) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48271426 + ... + 48304672.

It is an arithmetic number, because the mean of its divisors is an integer number (104118372864).

Almost surely, 2^{1605432765103} is an apocalyptic number.

1605432765103 is a deficient number, since it is larger than the sum of its proper divisors (60461200721).

1605432765103 is a wasteful number, since it uses less digits than its factorization.

1605432765103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41382.

The product of its (nonzero) digits is 453600, while the sum is 43.

The spelling of 1605432765103 in words is "one trillion, six hundred five billion, four hundred thirty-two million, seven hundred sixty-five thousand, one hundred three".