11778142255 has 16 divisors (see below), whose sum is σ = 15777235584. Its totient is φ = 8366712480.

The previous prime is 11778142223. The next prime is 11778142301. The reversal of 11778142255 is 55224187711.

It is a happy number.

It is not a de Polignac number, because 11778142255 - 2⁵ = 11778142223 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

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, 2487729 + ... + 2492458.

It is an arithmetic number, because the mean of its divisors is an integer number (986077224).

Almost surely, 2^11778142255 is an apocalyptic number.

11778142255 is a deficient number, since it is larger than the sum of its proper divisors (3999093329).

11778142255 is a wasteful number, since it uses less digits than its factorization.

11778142255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4980246.

The product of its digits is 156800, while the sum is 43.

The spelling of 11778142255 in words is "eleven billion, seven hundred seventy-eight million, one hundred forty-two thousand, two hundred fifty-five".