124165380686761 has 2 divisors, whose sum is σ = 124165380686762. Its totient is φ = 124165380686760.

The previous prime is 124165380686723. The next prime is 124165380686843. The reversal of 124165380686761 is 167686083561421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119594871171136 + 4570509515625 = 10935944^2 + 2137875^2 .

It is an emirp because it is prime and its reverse (167686083561421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 124165380686761 - 2²⁵ = 124165347132329 is a prime.

It is a super-2 number, since 2×124165380686761² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 124165380686693 and 124165380686702.

It is not a weakly prime, because it can be changed into another prime (124165380686701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62082690343380 + 62082690343381.

It is an arithmetic number, because the mean of its divisors is an integer number (62082690343381).

Almost surely, 2^{124165380686761} is an apocalyptic number.

It is an amenable number.

124165380686761 is a deficient number, since it is larger than the sum of its proper divisors (1).

124165380686761 is an equidigital number, since it uses as much as digits as its factorization.

124165380686761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69672960, while the sum is 64.

The spelling of 124165380686761 in words is "one hundred twenty-four trillion, one hundred sixty-five billion, three hundred eighty million, six hundred eighty-six thousand, seven hundred sixty-one".