1157166571156 has 48 divisors (see below), whose sum is σ = 2084276434240. Its totient is φ = 561818799360.

The previous prime is 1157166571123. The next prime is 1157166571157. The reversal of 1157166571156 is 6511756617511.

It is a super-3 number, since 3×1157166571156³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1157166571157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161229040 + ... + 161236216.

Almost surely, 2^{1157166571156} is an apocalyptic number.

It is an amenable number.

1157166571156 is a deficient number, since it is larger than the sum of its proper divisors (927109863084).

1157166571156 is a wasteful number, since it uses less digits than its factorization.

1157166571156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12584 (or 12582 counting only the distinct ones).

The product of its digits is 1323000, while the sum is 52.

The spelling of 1157166571156 in words is "one trillion, one hundred fifty-seven billion, one hundred sixty-six million, five hundred seventy-one thousand, one hundred fifty-six".