8220584155 has 8 divisors (see below), whose sum is σ = 11273944032. Its totient is φ = 5636971968.

The previous prime is 8220584147. The next prime is 8220584159. The reversal of 8220584155 is 5514850228.

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

It is a cyclic number.

It is not a de Polignac number, because 8220584155 - 2³ = 8220584147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8220584159) 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, 117436882 + ... + 117436951.

It is an arithmetic number, because the mean of its divisors is an integer number (1409243004).

Almost surely, 2^8220584155 is an apocalyptic number.

8220584155 is a deficient number, since it is larger than the sum of its proper divisors (3053359877).

8220584155 is a wasteful number, since it uses less digits than its factorization.

8220584155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234873845.

The product of its (nonzero) digits is 128000, while the sum is 40.

The square root of 8220584155 is about 90667.4371260156. The cubic root of 8220584155 is about 2018.2156051079.

The spelling of 8220584155 in words is "eight billion, two hundred twenty million, five hundred eighty-four thousand, one hundred fifty-five".