122918166 has 96 divisors (see below), whose sum is σ = 318489600. Its totient is φ = 34228656.

The previous prime is 122918161. The next prime is 122918189. The reversal of 122918166 is 661819221.

It is a self number, because there is not a number n which added to its sum of digits gives 122918166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122918161) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 265251 + ... + 265713.

It is an arithmetic number, because the mean of its divisors is an integer number (3317600).

Almost surely, 2^122918166 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122918166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159244800).

122918166 is an abundant number, since it is smaller than the sum of its proper divisors (195571434).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122918166 is a wasteful number, since it uses less digits than its factorization.

122918166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535 (or 518 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 122918166 is about 11086.8465309122. The cubic root of 122918166 is about 497.2086672547.

The spelling of 122918166 in words is "one hundred twenty-two million, nine hundred eighteen thousand, one hundred sixty-six".