1263365160061 has 2 divisors, whose sum is σ = 1263365160062. Its totient is φ = 1263365160060.

The previous prime is 1263365160053. The next prime is 1263365160091. The reversal of 1263365160061 is 1600615633621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 772475756836 + 490889403225 = 878906^2 + 700635^2 .

It is a cyclic number.

It is not a de Polignac number, because 1263365160061 - 2³ = 1263365160053 is a prime.

It is a super-2 number, since 2×1263365160061² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1263365159996 and 1263365160023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1263365160091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 631682580030 + 631682580031.

It is an arithmetic number, because the mean of its divisors is an integer number (631682580031).

Almost surely, 2^{1263365160061} is an apocalyptic number.

It is an amenable number.

1263365160061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1263365160061 is an equidigital number, since it uses as much as digits as its factorization.

1263365160061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116640, while the sum is 40.

The spelling of 1263365160061 in words is "one trillion, two hundred sixty-three billion, three hundred sixty-five million, one hundred sixty thousand, sixty-one".