1164554042361 has 16 divisors (see below), whose sum is σ = 1687186391040. Its totient is φ = 711781756560.

The previous prime is 1164554042341. The next prime is 1164554042411. The reversal of 1164554042361 is 1632404554611.

It is not a de Polignac number, because 1164554042361 - 2²¹ = 1164551945209 is a prime.

It is a super-2 number, since 2×1164554042361² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1164554042341) 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 15 ways as a sum of consecutive naturals, for example, 329526825 + ... + 329530358.

It is an arithmetic number, because the mean of its divisors is an integer number (105449149440).

Almost surely, 2^{1164554042361} is an apocalyptic number.

It is an amenable number.

1164554042361 is a deficient number, since it is larger than the sum of its proper divisors (522632348679).

1164554042361 is a wasteful number, since it uses less digits than its factorization.

1164554042361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659057236.

The product of its (nonzero) digits is 345600, while the sum is 42.

Adding to 1164554042361 its reverse (1632404554611), we get a palindrome (2796958596972).

The spelling of 1164554042361 in words is "one trillion, one hundred sixty-four billion, five hundred fifty-four million, forty-two thousand, three hundred sixty-one".