122895566777 has 2 divisors, whose sum is σ = 122895566778. Its totient is φ = 122895566776.

The previous prime is 122895566747. The next prime is 122895566789. The reversal of 122895566777 is 777665598221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118036222096 + 4859344681 = 343564^2 + 69709^2 .

It is a cyclic number.

It is not a de Polignac number, because 122895566777 - 2¹² = 122895562681 is a prime.

It is a super-3 number, since 3×122895566777³ (a number of 34 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (122895566747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61447783388 + 61447783389.

It is an arithmetic number, because the mean of its divisors is an integer number (61447783389).

Almost surely, 2^122895566777 is an apocalyptic number.

It is an amenable number.

122895566777 is a deficient number, since it is larger than the sum of its proper divisors (1).

122895566777 is an equidigital number, since it uses as much as digits as its factorization.

122895566777 is an evil number, because the sum of its binary digits is even.

The product of its digits is 88905600, while the sum is 65.

The spelling of 122895566777 in words is "one hundred twenty-two billion, eight hundred ninety-five million, five hundred sixty-six thousand, seven hundred seventy-seven".