11709143655 has 16 divisors (see below), whose sum is σ = 20437778304. Its totient is φ = 5677160480.

The previous prime is 11709143639. The next prime is 11709143671. The reversal of 11709143655 is 55634190711.

It is an interprime number because it is at equal distance from previous prime (11709143639) and next prime (11709143671).

It is not a de Polignac number, because 11709143655 - 2⁴ = 11709143639 is a prime.

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, 35482089 + ... + 35482418.

It is an arithmetic number, because the mean of its divisors is an integer number (1277361144).

Almost surely, 2^11709143655 is an apocalyptic number.

11709143655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11709143655 is a deficient number, since it is larger than the sum of its proper divisors (8728634649).

11709143655 is a wasteful number, since it uses less digits than its factorization.

11709143655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70964526.

The product of its (nonzero) digits is 113400, while the sum is 42.

The spelling of 11709143655 in words is "eleven billion, seven hundred nine million, one hundred forty-three thousand, six hundred fifty-five".