8220911755 has 32 divisors (see below), whose sum is σ = 11415600000. Its totient is φ = 5566758912.

The previous prime is 8220911693. The next prime is 8220911767. The reversal of 8220911755 is 5571190228.

It is a cyclic number.

It is not a de Polignac number, because 8220911755 - 2⁷ = 8220911627 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3889579 + ... + 3891691.

It is an arithmetic number, because the mean of its divisors is an integer number (356737500).

Almost surely, 2^8220911755 is an apocalyptic number.

8220911755 is a deficient number, since it is larger than the sum of its proper divisors (3194688245).

8220911755 is a wasteful number, since it uses less digits than its factorization.

8220911755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3463.

The product of its (nonzero) digits is 50400, while the sum is 40.

The square root of 8220911755 is about 90669.2437103123. The cubic root of 8220911755 is about 2018.2424141780.

The spelling of 8220911755 in words is "eight billion, two hundred twenty million, nine hundred eleven thousand, seven hundred fifty-five".