1156097978841 has 32 divisors (see below), whose sum is σ = 1673166781440. Its totient is φ = 705821313600.

The previous prime is 1156097978821. The next prime is 1156097978857. The reversal of 1156097978841 is 1488797906511.

It is not a de Polignac number, because 1156097978841 - 2¹⁹ = 1156097454553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1156097978821) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19952370 + ... + 20010228.

It is an arithmetic number, because the mean of its divisors is an integer number (52286461920).

Almost surely, 2^{1156097978841} is an apocalyptic number.

It is an amenable number.

1156097978841 is a deficient number, since it is larger than the sum of its proper divisors (517068802599).

1156097978841 is a wasteful number, since it uses less digits than its factorization.

1156097978841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61917.

The product of its (nonzero) digits is 30481920, while the sum is 66.

The spelling of 1156097978841 in words is "one trillion, one hundred fifty-six billion, ninety-seven million, nine hundred seventy-eight thousand, eight hundred forty-one".