11043616161 has 24 divisors (see below), whose sum is σ = 14949567360. Its totient is φ = 7251589632.

The previous prime is 11043616159. The next prime is 11043616217. The reversal of 11043616161 is 16161634011.

It is not a de Polignac number, because 11043616161 - 2¹ = 11043616159 is a prime.

It is a super-2 number, since 2×11043616161² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11043616151) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6745435 + ... + 6747071.

It is an arithmetic number, because the mean of its divisors is an integer number (622898640).

Almost surely, 2^11043616161 is an apocalyptic number.

It is an amenable number.

11043616161 is a deficient number, since it is larger than the sum of its proper divisors (3905951199).

11043616161 is an equidigital number, since it uses as much as digits as its factorization.

11043616161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2073 (or 1976 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The spelling of 11043616161 in words is "eleven billion, forty-three million, six hundred sixteen thousand, one hundred sixty-one".