11820572755 has 8 divisors (see below), whose sum is σ = 14191264224. Its totient is φ = 9452073600.

The previous prime is 11820572723. The next prime is 11820572767. The reversal of 11820572755 is 55727502811.

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

It is not a de Polignac number, because 11820572755 - 2⁵ = 11820572723 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 536191 + ... + 557800.

It is an arithmetic number, because the mean of its divisors is an integer number (1773908028).

Almost surely, 2^11820572755 is an apocalyptic number.

11820572755 is a deficient number, since it is larger than the sum of its proper divisors (2370691469).

11820572755 is a wasteful number, since it uses less digits than its factorization.

11820572755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096157.

The product of its (nonzero) digits is 196000, while the sum is 43.

The spelling of 11820572755 in words is "eleven billion, eight hundred twenty million, five hundred seventy-two thousand, seven hundred fifty-five".