534615213238661 has 2 divisors, whose sum is σ = 534615213238662. Its totient is φ = 534615213238660.

The previous prime is 534615213238597. The next prime is 534615213238721. The reversal of 534615213238661 is 166832312516435.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 427848333405025 + 106766879833636 = 20684495^2 + 10332806^2 .

It is a cyclic number.

It is not a de Polignac number, because 534615213238661 - 2⁶ = 534615213238597 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 534615213238597 and 534615213238606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (534615213438661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 267307606619330 + 267307606619331.

It is an arithmetic number, because the mean of its divisors is an integer number (267307606619331).

Almost surely, 2^{534615213238661} is an apocalyptic number.

It is an amenable number.

534615213238661 is a deficient number, since it is larger than the sum of its proper divisors (1).

534615213238661 is an equidigital number, since it uses as much as digits as its factorization.

534615213238661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18662400, while the sum is 56.

The spelling of 534615213238661 in words is "five hundred thirty-four trillion, six hundred fifteen billion, two hundred thirteen million, two hundred thirty-eight thousand, six hundred sixty-one".