20134166513 has 2 divisors, whose sum is σ = 20134166514. Its totient is φ = 20134166512.

The previous prime is 20134166497. The next prime is 20134166539. The reversal of 20134166513 is 31566143102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19984911424 + 149255089 = 141368^2 + 12217^2 .

It is a cyclic number.

It is not a de Polignac number, because 20134166513 - 2⁴ = 20134166497 is a prime.

It is a super-2 number, since 2×20134166513² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20134166513.

It is not a weakly prime, because it can be changed into another prime (20134166113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10067083256 + 10067083257.

It is an arithmetic number, because the mean of its divisors is an integer number (10067083257).

Almost surely, 2^20134166513 is an apocalyptic number.

It is an amenable number.

20134166513 is a deficient number, since it is larger than the sum of its proper divisors (1).

20134166513 is an equidigital number, since it uses as much as digits as its factorization.

20134166513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 32.

The spelling of 20134166513 in words is "twenty billion, one hundred thirty-four million, one hundred sixty-six thousand, five hundred thirteen".