1040665816616 has 16 divisors (see below), whose sum is σ = 1973172546900. Its totient is φ = 514486470784.

The previous prime is 1040665816579. The next prime is 1040665816693. The reversal of 1040665816616 is 6166185660401.

It can be written as a sum of positive squares in 2 ways, for example, as 814784243716 + 225881572900 = 902654^2 + 475270^2 .

It is a super-2 number, since 2×1040665816616² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 730803935 + ... + 730805358.

Almost surely, 2^{1040665816616} is an apocalyptic number.

It is an amenable number.

1040665816616 is a deficient number, since it is larger than the sum of its proper divisors (932506730284).

1040665816616 is a wasteful number, since it uses less digits than its factorization.

1040665816616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1461609388 (or 1461609384 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 50.

The spelling of 1040665816616 in words is "one trillion, forty billion, six hundred sixty-five million, eight hundred sixteen thousand, six hundred sixteen".