11661223350146 has 12 divisors (see below), whose sum is σ = 18074289472326. Its totient is φ = 5642527426560.

The previous prime is 11661223350131. The next prime is 11661223350157. The reversal of 11661223350146 is 64105332216611.

It can be written as a sum of positive squares in only one way, i.e., 9260548903225 + 2400674446921 = 3043115^2 + 1549411^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3033614975 + ... + 3033618818.

Almost surely, 2^{11661223350146} is an apocalyptic number.

11661223350146 is a deficient number, since it is larger than the sum of its proper divisors (6413066122180).

11661223350146 is an equidigital number, since it uses as much as digits as its factorization.

11661223350146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6067233857 (or 6067233826 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 41.

Adding to 11661223350146 its reverse (64105332216611), we get a palindrome (75766555566757).

The spelling of 11661223350146 in words is "eleven trillion, six hundred sixty-one billion, two hundred twenty-three million, three hundred fifty thousand, one hundred forty-six".