11043663401161 has 4 divisors (see below), whose sum is σ = 11046092185872. Its totient is φ = 11041234616452.

The previous prime is 11043663401149. The next prime is 11043663401207. The reversal of 11043663401161 is 16110436634011.

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 a cyclic number.

It is not a de Polignac number, because 11043663401161 - 2⁵ = 11043663401129 is a prime.

It is a super-2 number, since 2×11043663401161² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11043663401161.

It is not an unprimeable number, because it can be changed into a prime (11043663401131) 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, 1214385535 + ... + 1214394628.

It is an arithmetic number, because the mean of its divisors is an integer number (2761523046468).

Almost surely, 2^{11043663401161} is an apocalyptic number.

It is an amenable number.

11043663401161 is a deficient number, since it is larger than the sum of its proper divisors (2428784711).

11043663401161 is an equidigital number, since it uses as much as digits as its factorization.

11043663401161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2428784710.

The product of its (nonzero) digits is 31104, while the sum is 37.

The spelling of 11043663401161 in words is "eleven trillion, forty-three billion, six hundred sixty-three million, four hundred one thousand, one hundred sixty-one".