1165426031017 has 4 divisors (see below), whose sum is σ = 1166906878096. Its totient is φ = 1163945183940.

The previous prime is 1165426030999. The next prime is 1165426031057. The reversal of 1165426031017 is 7101306245611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1165426031017 - 2⁷ = 1165426030889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1165426031057) 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 3 ways as a sum of consecutive naturals, for example, 740422359 + ... + 740423932.

It is an arithmetic number, because the mean of its divisors is an integer number (291726719524).

Almost surely, 2^{1165426031017} is an apocalyptic number.

It is an amenable number.

1165426031017 is a deficient number, since it is larger than the sum of its proper divisors (1480847079).

1165426031017 is an equidigital number, since it uses as much as digits as its factorization.

1165426031017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1480847078.

The product of its (nonzero) digits is 30240, while the sum is 37.

The spelling of 1165426031017 in words is "one trillion, one hundred sixty-five billion, four hundred twenty-six million, thirty-one thousand, seventeen".