5235223517661 has 8 divisors (see below), whose sum is σ = 6980308973344. Its totient is φ = 3490143536880.

The previous prime is 5235223517609. The next prime is 5235223517731. The reversal of 5235223517661 is 1667153225325.

5235223517661 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 5235223517661 - 2⁹ = 5235223517149 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 5235223517661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5235223517761) 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, 2167995 + ... + 3894951.

It is an arithmetic number, because the mean of its divisors is an integer number (872538621668).

Almost surely, 2^{5235223517661} is an apocalyptic number.

It is an amenable number.

5235223517661 is a deficient number, since it is larger than the sum of its proper divisors (1745085455683).

5235223517661 is a wasteful number, since it uses less digits than its factorization.

5235223517661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2737451.

The product of its digits is 2268000, while the sum is 48.

The spelling of 5235223517661 in words is "five trillion, two hundred thirty-five billion, two hundred twenty-three million, five hundred seventeen thousand, six hundred sixty-one".