8223555134765 has 8 divisors (see below), whose sum is σ = 9868336965528. Its totient is φ = 6578796905280.

The previous prime is 8223555134749. The next prime is 8223555134771. The reversal of 8223555134765 is 5674315553228.

It can be written as a sum of positive squares in 4 ways, for example, as 1908677639401 + 6314877495364 = 1381549^2 + 2512942^2 .

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

It is not a de Polignac number, because 8223555134765 - 2⁴ = 8223555134749 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 8223555134765.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5124482 + ... + 6535091.

It is an arithmetic number, because the mean of its divisors is an integer number (1233542120691).

Almost surely, 2^{8223555134765} is an apocalyptic number.

It is an amenable number.

8223555134765 is a deficient number, since it is larger than the sum of its proper divisors (1644781830763).

8223555134765 is a wasteful number, since it uses less digits than its factorization.

8223555134765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11800639.

The product of its digits is 30240000, while the sum is 56.

The spelling of 8223555134765 in words is "eight trillion, two hundred twenty-three billion, five hundred fifty-five million, one hundred thirty-four thousand, seven hundred sixty-five".