866763322228465 has 8 divisors (see below), whose sum is σ = 1101299280008040. Its totient is φ = 652621795560192.

The previous prime is 866763322228313. The next prime is 866763322228493. The reversal of 866763322228465 is 564822223367668.

It can be written as a sum of positive squares in 4 ways, for example, as 126536378847921 + 740226943380544 = 11248839^2 + 27207112^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-866763322228465 is a prime.

It is a super-3 number, since 3×866763322228465³ (a number of 46 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 866763322228394 and 866763322228403.

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, 5098607777730 + ... + 5098607777899.

It is an arithmetic number, because the mean of its divisors is an integer number (137662410001005).

Almost surely, 2^{866763322228465} is an apocalyptic number.

866763322228465 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

866763322228465 is a deficient number, since it is larger than the sum of its proper divisors (234535957779575).

866763322228465 is a wasteful number, since it uses less digits than its factorization.

866763322228465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10197215555651.

The product of its digits is 1672151040, while the sum is 70.

The spelling of 866763322228465 in words is "eight hundred sixty-six trillion, seven hundred sixty-three billion, three hundred twenty-two million, two hundred twenty-eight thousand, four hundred sixty-five".