534553245532661 has 4 divisors (see below), whose sum is σ = 552986116068300. Its totient is φ = 516120374997024.

The previous prime is 534553245532651. The next prime is 534553245532739. The reversal of 534553245532661 is 166235542355435.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 410419220545636 + 124134024987025 = 20258806^2 + 11141545^2 .

It is a cyclic number.

It is not a de Polignac number, because 534553245532661 - 2⁴² = 530155199021557 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 534553245532661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (534553245532651) 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, 9216435267776 + ... + 9216435267833.

It is an arithmetic number, because the mean of its divisors is an integer number (138246529017075).

Almost surely, 2^{534553245532661} is an apocalyptic number.

It is an amenable number.

534553245532661 is a deficient number, since it is larger than the sum of its proper divisors (18432870535639).

534553245532661 is a wasteful number, since it uses less digits than its factorization.

534553245532661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18432870535638.

The product of its digits is 194400000, while the sum is 59.

The spelling of 534553245532661 in words is "five hundred thirty-four trillion, five hundred fifty-three billion, two hundred forty-five million, five hundred thirty-two thousand, six hundred sixty-one".