1157617271481 has 16 divisors (see below), whose sum is σ = 1683826679808. Its totient is φ = 701578000400.

The previous prime is 1157617271479. The next prime is 1157617271497. The reversal of 1157617271481 is 1841727167511.

It is a cyclic number.

It is not a de Polignac number, because 1157617271481 - 2¹ = 1157617271479 is a prime.

It is a super-2 number, since 2×1157617271481² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1157617271401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3840076 + ... + 4130546.

It is an arithmetic number, because the mean of its divisors is an integer number (105239167488).

Almost surely, 2^{1157617271481} is an apocalyptic number.

1157617271481 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1157617271481 is a deficient number, since it is larger than the sum of its proper divisors (526209408327).

1157617271481 is a wasteful number, since it uses less digits than its factorization.

1157617271481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411252.

The product of its digits is 658560, while the sum is 51.

The spelling of 1157617271481 in words is "one trillion, one hundred fifty-seven billion, six hundred seventeen million, two hundred seventy-one thousand, four hundred eighty-one".