11205666655711 has 8 divisors (see below), whose sum is σ = 12345396928848. Its totient is φ = 10086108600000.

The previous prime is 11205666655663. The next prime is 11205666655721. The reversal of 11205666655711 is 11755666650211.

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

It is a cyclic number.

It is not a de Polignac number, because 11205666655711 - 2¹¹ = 11205666653663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11205666655721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5043053190 + ... + 5043055411.

It is an arithmetic number, because the mean of its divisors is an integer number (1543174616106).

Almost surely, 2^{11205666655711} is an apocalyptic number.

11205666655711 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11205666655711 is a deficient number, since it is larger than the sum of its proper divisors (1139730273137).

11205666655711 is a wasteful number, since it uses less digits than its factorization.

11205666655711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10086108713.

The product of its (nonzero) digits is 2268000, while the sum is 52.

The spelling of 11205666655711 in words is "eleven trillion, two hundred five billion, six hundred sixty-six million, six hundred fifty-five thousand, seven hundred eleven".