8216225757677 has 4 divisors (see below), whose sum is σ = 9389972294496. Its totient is φ = 7042479220860.

The previous prime is 8216225757643. The next prime is 8216225757679. The reversal of 8216225757677 is 7767575226128.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8216225757677 - 2¹⁴ = 8216225741293 is a prime.

It is a super-2 number, since 2×8216225757677² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8216225757679) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 586873268399 + ... + 586873268412.

It is an arithmetic number, because the mean of its divisors is an integer number (2347493073624).

Almost surely, 2^{8216225757677} is an apocalyptic number.

It is an amenable number.

8216225757677 is a deficient number, since it is larger than the sum of its proper divisors (1173746536819).

8216225757677 is a wasteful number, since it uses less digits than its factorization.

8216225757677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1173746536818.

The product of its digits is 138297600, while the sum is 65.

The spelling of 8216225757677 in words is "eight trillion, two hundred sixteen billion, two hundred twenty-five million, seven hundred fifty-seven thousand, six hundred seventy-seven".