11880161 has 8 divisors (see below), whose sum is σ = 12985344. Its totient is φ = 10820160.

The previous prime is 11880139. The next prime is 11880163. The reversal of 11880161 is 16108811.

11880161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 11880161 - 2⁶ = 11880097 is a prime.

It is a super-2 number, since 2×11880161² = 282276450771842, which 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 11880161.

It is not an unprimeable number, because it can be changed into a prime (11880163) 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, 10745 + ... + 11798.

It is an arithmetic number, because the mean of its divisors is an integer number (1623168).

Almost surely, 2^11880161 is an apocalyptic number.

It is an amenable number.

11880161 is a deficient number, since it is larger than the sum of its proper divisors (1105183).

11880161 is a wasteful number, since it uses less digits than its factorization.

11880161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22591.

The product of its (nonzero) digits is 384, while the sum is 26.

The square root of 11880161 is about 3446.7609432625. The cubic root of 11880161 is about 228.1781784076.

Adding to 11880161 its reverse (16108811), we get a palindrome (27988972).

The spelling of 11880161 in words is "eleven million, eight hundred eighty thousand, one hundred sixty-one".