5523265521661 has 8 divisors (see below), whose sum is σ = 5528296264824. Its totient is φ = 5518235197440.

The previous prime is 5523265521643. The next prime is 5523265521667. The reversal of 5523265521661 is 1661255623255.

It can be written as a sum of positive squares in 4 ways, for example, as 3374311824900 + 2148953696761 = 1836930^2 + 1465931^2 .

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 5523265521661 - 2¹¹ = 5523265519613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5523265521667) 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, 30257115 + ... + 30439111.

It is an arithmetic number, because the mean of its divisors is an integer number (691037033103).

Almost surely, 2^{5523265521661} is an apocalyptic number.

It is an amenable number.

5523265521661 is a deficient number, since it is larger than the sum of its proper divisors (5030743163).

5523265521661 is a wasteful number, since it uses less digits than its factorization.

5523265521661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209471.

The product of its digits is 3240000, while the sum is 49.

The spelling of 5523265521661 in words is "five trillion, five hundred twenty-three billion, two hundred sixty-five million, five hundred twenty-one thousand, six hundred sixty-one".