121166107606 has 4 divisors (see below), whose sum is σ = 181749161412. Its totient is φ = 60583053802.

The previous prime is 121166107577. The next prime is 121166107633. The reversal of 121166107606 is 606701661121.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30291526900 + ... + 30291526903.

It is an arithmetic number, because the mean of its divisors is an integer number (45437290353).

Almost surely, 2^121166107606 is an apocalyptic number.

121166107606 is a deficient number, since it is larger than the sum of its proper divisors (60583053806).

121166107606 is an equidigital number, since it uses as much as digits as its factorization.

121166107606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60583053805.

The product of its (nonzero) digits is 18144, while the sum is 37.

Adding to 121166107606 its reverse (606701661121), we get a palindrome (727867768727).

The spelling of 121166107606 in words is "one hundred twenty-one billion, one hundred sixty-six million, one hundred seven thousand, six hundred six".