1071566616172 has 12 divisors (see below), whose sum is σ = 2019490930576. Its totient is φ = 494569207440.

The previous prime is 1071566616097. The next prime is 1071566616193. The reversal of 1071566616172 is 2716166651701.

It is a super-2 number, since 2×1071566616172² (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, 10303525104 + ... + 10303525207.

Almost surely, 2^{1071566616172} is an apocalyptic number.

It is an amenable number.

1071566616172 is a deficient number, since it is larger than the sum of its proper divisors (947924314404).

1071566616172 is a wasteful number, since it uses less digits than its factorization.

1071566616172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20607050328 (or 20607050326 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 49.

The spelling of 1071566616172 in words is "one trillion, seventy-one billion, five hundred sixty-six million, six hundred sixteen thousand, one hundred seventy-two".