122616665 has 8 divisors (see below), whose sum is σ = 155795400. Its totient is φ = 92323072.

The previous prime is 122616653. The next prime is 122616667. The reversal of 122616665 is 566616221.

It can be written as a sum of positive squares in 4 ways, for example, as 29899024 + 92717641 = 5468^2 + 9629^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 122616665 - 2⁶ = 122616601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122616667) 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, 721190 + ... + 721359.

It is an arithmetic number, because the mean of its divisors is an integer number (19474425).

Almost surely, 2^122616665 is an apocalyptic number.

It is an amenable number.

122616665 is a deficient number, since it is larger than the sum of its proper divisors (33178735).

122616665 is a wasteful number, since it uses less digits than its factorization.

122616665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1442571.

The product of its digits is 25920, while the sum is 35.

The square root of 122616665 is about 11073.2409438249. The cubic root of 122616665 is about 496.8018067364.

The spelling of 122616665 in words is "one hundred twenty-two million, six hundred sixteen thousand, six hundred sixty-five".