1165426031018 has 8 divisors (see below), whose sum is σ = 1755772842180. Its totient is φ = 580168416960.

The previous prime is 1165426030999. The next prime is 1165426031057. The reversal of 1165426031018 is 8101306245611.

It can be written as a sum of positive squares in 2 ways, for example, as 939974847529 + 225451183489 = 969523^2 + 474817^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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, 1272298703 + ... + 1272299618.

Almost surely, 2^{1165426031018} is an apocalyptic number.

1165426031018 is a deficient number, since it is larger than the sum of its proper divisors (590346811162).

1165426031018 is a wasteful number, since it uses less digits than its factorization.

1165426031018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2544598552.

The product of its (nonzero) digits is 34560, while the sum is 38.

The spelling of 1165426031018 in words is "one trillion, one hundred sixty-five billion, four hundred twenty-six million, thirty-one thousand, eighteen".