1161067646523 has 4 divisors (see below), whose sum is σ = 1548090195368. Its totient is φ = 774045097680.

The previous prime is 1161067646471. The next prime is 1161067646533. The reversal of 1161067646523 is 3256467601611.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1161067646523 - 2¹⁴ = 1161067630139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1161067646533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193511274418 + ... + 193511274423.

It is an arithmetic number, because the mean of its divisors is an integer number (387022548842).

Almost surely, 2^{1161067646523} is an apocalyptic number.

1161067646523 is a deficient number, since it is larger than the sum of its proper divisors (387022548845).

1161067646523 is an equidigital number, since it uses as much as digits as its factorization.

1161067646523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387022548844.

The product of its (nonzero) digits is 1088640, while the sum is 48.

The spelling of 1161067646523 in words is "one trillion, one hundred sixty-one billion, sixty-seven million, six hundred forty-six thousand, five hundred twenty-three".