501023663761157 has 2 divisors, whose sum is σ = 501023663761158. Its totient is φ = 501023663761156.

The previous prime is 501023663761111. The next prime is 501023663761183. The reversal of 501023663761157 is 751167366320105.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 366799065696001 + 134224598065156 = 19151999^2 + 11585534^2 .

It is a cyclic number.

It is not a de Polignac number, because 501023663761157 - 2⁴⁸ = 219548687050501 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 501023663761099 and 501023663761108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (501023663760157) 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, 250511831880578 + 250511831880579.

It is an arithmetic number, because the mean of its divisors is an integer number (250511831880579).

Almost surely, 2^{501023663761157} is an apocalyptic number.

It is an amenable number.

501023663761157 is a deficient number, since it is larger than the sum of its proper divisors (1).

501023663761157 is an equidigital number, since it uses as much as digits as its factorization.

501023663761157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4762800, while the sum is 53.

The spelling of 501023663761157 in words is "five hundred one trillion, twenty-three billion, six hundred sixty-three million, seven hundred sixty-one thousand, one hundred fifty-seven".