1161577357756 has 24 divisors (see below), whose sum is σ = 2157328385856. Its totient is φ = 545356354560.

The previous prime is 1161577357723. The next prime is 1161577357781. The reversal of 1161577357756 is 6577537751611.

It is a junction number, because it is equal to n+sod(n) for n = 1161577357694 and 1161577357703.

It is a congruent number.

It is an unprimeable number.

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, 19787421 + ... + 19846036.

It is an arithmetic number, because the mean of its divisors is an integer number (89888682744).

Almost surely, 2^{1161577357756} is an apocalyptic number.

It is an amenable number.

1161577357756 is a deficient number, since it is larger than the sum of its proper divisors (995751028100).

1161577357756 is a wasteful number, since it uses less digits than its factorization.

1161577357756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39633909 (or 39633907 counting only the distinct ones).

The product of its digits is 32413500, while the sum is 61.

The spelling of 1161577357756 in words is "one trillion, one hundred sixty-one billion, five hundred seventy-seven million, three hundred fifty-seven thousand, seven hundred fifty-six".