1165026453613 has 16 divisors (see below), whose sum is σ = 1305338869440. Its totient is φ = 1030449772800.

The previous prime is 1165026453601. The next prime is 1165026453673. The reversal of 1165026453613 is 3163546205611.

It is a cyclic number.

It is not a de Polignac number, because 1165026453613 - 2¹³ = 1165026445421 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1165026453613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1165026453673) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15844053 + ... + 15917413.

It is an arithmetic number, because the mean of its divisors is an integer number (81583679340).

Almost surely, 2^{1165026453613} is an apocalyptic number.

It is an amenable number.

1165026453613 is a deficient number, since it is larger than the sum of its proper divisors (140312415827).

1165026453613 is a wasteful number, since it uses less digits than its factorization.

1165026453613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112428.

The product of its (nonzero) digits is 388800, while the sum is 43.

The spelling of 1165026453613 in words is "one trillion, one hundred sixty-five billion, twenty-six million, four hundred fifty-three thousand, six hundred thirteen".