122664546665 has 8 divisors (see below), whose sum is σ = 148135020360. Its totient is φ = 97506594432.

The previous prime is 122664546661. The next prime is 122664546671. The reversal of 122664546665 is 566645466221.

It can be written as a sum of positive squares in 4 ways, for example, as 4050431449 + 118614115216 = 63643^2 + 344404^2 .

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 122664546665 - 2² = 122664546661 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122664546661) 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, 78129500 + ... + 78131069.

It is an arithmetic number, because the mean of its divisors is an integer number (18516877545).

Almost surely, 2^122664546665 is an apocalyptic number.

It is an amenable number.

122664546665 is a deficient number, since it is larger than the sum of its proper divisors (25470473695).

122664546665 is a wasteful number, since it uses less digits than its factorization.

122664546665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156260731.

The product of its digits is 12441600, while the sum is 53.

The spelling of 122664546665 in words is "one hundred twenty-two billion, six hundred sixty-four million, five hundred forty-six thousand, six hundred sixty-five".