1085163128272 has 10 divisors (see below), whose sum is σ = 2102503561058. Its totient is φ = 542581564128.

The previous prime is 1085163128249. The next prime is 1085163128297. The reversal of 1085163128272 is 2728213615801.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 596360795536 + 488802332736 = 772244^2 + 699144^2 .

It is a super-2 number, since 2×1085163128272² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33911347743 + ... + 33911347774.

Almost surely, 2^{1085163128272} is an apocalyptic number.

It is an amenable number.

1085163128272 is a deficient number, since it is larger than the sum of its proper divisors (1017340432786).

1085163128272 is an equidigital number, since it uses as much as digits as its factorization.

1085163128272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67822695525 (or 67822695519 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 46.

The spelling of 1085163128272 in words is "one trillion, eighty-five billion, one hundred sixty-three million, one hundred twenty-eight thousand, two hundred seventy-two".