12161662 has 4 divisors (see below), whose sum is σ = 18242496. Its totient is φ = 6080830.

The previous prime is 12161651. The next prime is 12161663. The reversal of 12161662 is 26616121.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12161663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3040414 + ... + 3040417.

It is an arithmetic number, because the mean of its divisors is an integer number (4560624).

Almost surely, 2^12161662 is an apocalyptic number.

12161662 is a deficient number, since it is larger than the sum of its proper divisors (6080834).

12161662 is an equidigital number, since it uses as much as digits as its factorization.

12161662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6080833.

The product of its digits is 864, while the sum is 25.

The square root of 12161662 is about 3487.3574522839. The cubic root of 12161662 is about 229.9663592890.

Adding to 12161662 its reverse (26616121), we get a palindrome (38777783).

The spelling of 12161662 in words is "twelve million, one hundred sixty-one thousand, six hundred sixty-two".