1156097925081 has 12 divisors (see below), whose sum is σ = 1821730063920. Its totient is φ = 700665409080.

The previous prime is 1156097925077. The next prime is 1156097925113. The reversal of 1156097925081 is 1805297906511.

It is a happy number.

1156097925081 is a `hidden beast` number, since 1 + 1 + 5 + 60 + 9 + 79 + 2 + 508 + 1 = 666.

It is not a de Polignac number, because 1156097925081 - 2² = 1156097925077 is a prime.

It is a super-2 number, since 2×1156097925081² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1156097925011) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 5838878311 + ... + 5838878508.

It is an arithmetic number, because the mean of its divisors is an integer number (151810838660).

Almost surely, 2^{1156097925081} is an apocalyptic number.

1156097925081 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1156097925081 is a deficient number, since it is larger than the sum of its proper divisors (665632138839).

1156097925081 is a wasteful number, since it uses less digits than its factorization.

1156097925081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11677756836 (or 11677756833 counting only the distinct ones).

The product of its (nonzero) digits is 1360800, while the sum is 54.

The spelling of 1156097925081 in words is "one trillion, one hundred fifty-six billion, ninety-seven million, nine hundred twenty-five thousand, eighty-one".