1610655006565 has 64 divisors (see below), whose sum is σ = 2334292992000. Its totient is φ = 1053671673600.

The previous prime is 1610655006553. The next prime is 1610655006589. The reversal of 1610655006565 is 5656005560161.

It is not a de Polignac number, because 1610655006565 - 2⁷ = 1610655006437 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1247886 + ... + 2185984.

It is an arithmetic number, because the mean of its divisors is an integer number (36473328000).

Almost surely, 2^{1610655006565} is an apocalyptic number.

It is an amenable number.

1610655006565 is a deficient number, since it is larger than the sum of its proper divisors (723637985435).

1610655006565 is a wasteful number, since it uses less digits than its factorization.

1610655006565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938218.

The product of its (nonzero) digits is 810000, while the sum is 46.

The spelling of 1610655006565 in words is "one trillion, six hundred ten billion, six hundred fifty-five million, six thousand, five hundred sixty-five".