11655833563641 has 4 divisors (see below), whose sum is σ = 15541111418192. Its totient is φ = 7770555709092.

The previous prime is 11655833563601. The next prime is 11655833563723. The reversal of 11655833563641 is 14636533855611.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 11655833563641 - 2¹⁷ = 11655833432569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11655833563601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1942638927271 + ... + 1942638927276.

It is an arithmetic number, because the mean of its divisors is an integer number (3885277854548).

Almost surely, 2^{11655833563641} is an apocalyptic number.

It is an amenable number.

11655833563641 is a deficient number, since it is larger than the sum of its proper divisors (3885277854551).

11655833563641 is an equidigital number, since it uses as much as digits as its factorization.

11655833563641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3885277854550.

The product of its digits is 23328000, while the sum is 57.

The spelling of 11655833563641 in words is "eleven trillion, six hundred fifty-five billion, eight hundred thirty-three million, five hundred sixty-three thousand, six hundred forty-one".