11339953805965 has 16 divisors (see below), whose sum is σ = 13931982068400. Its totient is φ = 8858109150720.

The previous prime is 11339953805903. The next prime is 11339953805987. The reversal of 11339953805965 is 56950835993311.

It can be written as a sum of positive squares in 8 ways, for example, as 1556989866436 + 9782963939529 = 1247794^2 + 3127773^2 .

It is not a de Polignac number, because 11339953805965 - 2¹¹ = 11339953803917 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11339953805965.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135652290 + ... + 135735859.

It is an arithmetic number, because the mean of its divisors is an integer number (870748879275).

Almost surely, 2^{11339953805965} is an apocalyptic number.

It is an amenable number.

11339953805965 is a deficient number, since it is larger than the sum of its proper divisors (2592028262435).

11339953805965 is a wasteful number, since it uses less digits than its factorization.

11339953805965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271388352.

The product of its (nonzero) digits is 118098000, while the sum is 67.

The spelling of 11339953805965 in words is "eleven trillion, three hundred thirty-nine billion, nine hundred fifty-three million, eight hundred five thousand, nine hundred sixty-five".