522545044202661 has 8 divisors (see below), whose sum is σ = 698145720973344. Its totient is φ = 347653865116880.

The previous prime is 522545044202651. The next prime is 522545044202683. The reversal of 522545044202661 is 166202440545225.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 522545044202661 - 2⁴³ = 513748951180453 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 522545044202661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522545044202641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177374419506 + ... + 177374422451.

It is an arithmetic number, because the mean of its divisors is an integer number (87268215121668).

Almost surely, 2^{522545044202661} is an apocalyptic number.

It is an amenable number.

522545044202661 is a deficient number, since it is larger than the sum of its proper divisors (175600676770683).

522545044202661 is a wasteful number, since it uses less digits than its factorization.

522545044202661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354748842451.

The product of its (nonzero) digits is 4608000, while the sum is 48.

Adding to 522545044202661 its reverse (166202440545225), we get a palindrome (688747484747886).

The spelling of 522545044202661 in words is "five hundred twenty-two trillion, five hundred forty-five billion, forty-four million, two hundred two thousand, six hundred sixty-one".