1072011557171 has 8 divisors (see below), whose sum is σ = 1140071377680. Its totient is φ = 1004507327488.

The previous prime is 1072011557153. The next prime is 1072011557209. The reversal of 1072011557171 is 1717551102701.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1072011557171 is a prime.

It is a super-2 number, since 2×1072011557171² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1072011554171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138893726 + ... + 138901443.

It is an arithmetic number, because the mean of its divisors is an integer number (142508922210).

Almost surely, 2^{1072011557171} is an apocalyptic number.

1072011557171 is a deficient number, since it is larger than the sum of its proper divisors (68059820509).

1072011557171 is a wasteful number, since it uses less digits than its factorization.

1072011557171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277795413.

The product of its (nonzero) digits is 17150, while the sum is 38.

Adding to 1072011557171 its reverse (1717551102701), we get a palindrome (2789562659872).

The spelling of 1072011557171 in words is "one trillion, seventy-two billion, eleven million, five hundred fifty-seven thousand, one hundred seventy-one".