1600665565045 has 16 divisors (see below), whose sum is σ = 2022456507840. Its totient is φ = 1212798109824.

The previous prime is 1600665564991. The next prime is 1600665565087. The reversal of 1600665565045 is 5405655660061.

It is a cyclic number.

It is not a de Polignac number, because 1600665565045 - 2¹⁷ = 1600665433973 is a prime.

It is a super-2 number, since 2×1600665565045² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1600665565045.

It is a congruent number.

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, 2003379 + ... + 2686048.

It is an arithmetic number, because the mean of its divisors is an integer number (126403531740).

Almost surely, 2^{1600665565045} is an apocalyptic number.

It is an amenable number.

1600665565045 is a deficient number, since it is larger than the sum of its proper divisors (421790942795).

1600665565045 is a wasteful number, since it uses less digits than its factorization.

1600665565045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4693044.

The product of its (nonzero) digits is 3240000, while the sum is 49.

The spelling of 1600665565045 in words is "one trillion, six hundred billion, six hundred sixty-five million, five hundred sixty-five thousand, forty-five".