1177233271556 has 48 divisors (see below), whose sum is σ = 2123290967616. Its totient is φ = 570927573504.

The previous prime is 1177233271553. The next prime is 1177233271579. The reversal of 1177233271556 is 6551723327711.

It is a happy number.

It is a super-2 number, since 2×1177233271556² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1177233271553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4142915 + ... + 4417941.

It is an arithmetic number, because the mean of its divisors is an integer number (44235228492).

Almost surely, 2^{1177233271556} is an apocalyptic number.

It is an amenable number.

1177233271556 is a deficient number, since it is larger than the sum of its proper divisors (946057696060).

1177233271556 is a wasteful number, since it uses less digits than its factorization.

1177233271556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275348 (or 275346 counting only the distinct ones).

The product of its digits is 1852200, while the sum is 50.

The spelling of 1177233271556 in words is "one trillion, one hundred seventy-seven billion, two hundred thirty-three million, two hundred seventy-one thousand, five hundred fifty-six".