1157057561165 has 16 divisors (see below), whose sum is σ = 1529399304576. Its totient is φ = 833326536000.

The previous prime is 1157057561129. The next prime is 1157057561189. The reversal of 1157057561165 is 5611657507511.

It is not a de Polignac number, because 1157057561165 - 2⁸ = 1157057560909 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102117686 + ... + 102129015.

It is an arithmetic number, because the mean of its divisors is an integer number (95587456536).

Almost surely, 2^{1157057561165} is an apocalyptic number.

It is an amenable number.

1157057561165 is a deficient number, since it is larger than the sum of its proper divisors (372341743411).

1157057561165 is a wasteful number, since it uses less digits than its factorization.

1157057561165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204246820.

The product of its (nonzero) digits is 1102500, while the sum is 50.

The spelling of 1157057561165 in words is "one trillion, one hundred fifty-seven billion, fifty-seven million, five hundred sixty-one thousand, one hundred sixty-five".