124660986617 has 2 divisors, whose sum is σ = 124660986618. Its totient is φ = 124660986616.

The previous prime is 124660986613. The next prime is 124660986641. The reversal of 124660986617 is 716689066421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122004202681 + 2656783936 = 349291^2 + 51544^2 .

It is a cyclic number.

It is not a de Polignac number, because 124660986617 - 2² = 124660986613 is a prime.

It is not a weakly prime, because it can be changed into another prime (124660986613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62330493308 + 62330493309.

It is an arithmetic number, because the mean of its divisors is an integer number (62330493309).

Almost surely, 2^124660986617 is an apocalyptic number.

It is an amenable number.

124660986617 is a deficient number, since it is larger than the sum of its proper divisors (1).

124660986617 is an equidigital number, since it uses as much as digits as its factorization.

124660986617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5225472, while the sum is 56.

The spelling of 124660986617 in words is "one hundred twenty-four billion, six hundred sixty million, nine hundred eighty-six thousand, six hundred seventeen".