534615213230661 has 4 divisors (see below), whose sum is σ = 712820284307552. Its totient is φ = 356410142153772.

The previous prime is 534615213230629. The next prime is 534615213230699. The reversal of 534615213230661 is 166032312516435.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 534615213230661 - 2⁵ = 534615213230629 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 534615213230661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (534615213238661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89102535538441 + ... + 89102535538446.

It is an arithmetic number, because the mean of its divisors is an integer number (178205071076888).

Almost surely, 2^{534615213230661} is an apocalyptic number.

It is an amenable number.

534615213230661 is a deficient number, since it is larger than the sum of its proper divisors (178205071076891).

534615213230661 is a wasteful number, since it uses less digits than its factorization.

534615213230661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178205071076890.

The product of its (nonzero) digits is 2332800, while the sum is 48.

The spelling of 534615213230661 in words is "five hundred thirty-four trillion, six hundred fifteen billion, two hundred thirteen million, two hundred thirty thousand, six hundred sixty-one".