8422564155 has 16 divisors (see below), whose sum is σ = 13789501440. Its totient is φ = 4387567968.

The previous prime is 8422564147. The next prime is 8422564187. The reversal of 8422564155 is 5514652248.

It is not a de Polignac number, because 8422564155 - 2³ = 8422564147 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6528475 + ... + 6529764.

It is an arithmetic number, because the mean of its divisors is an integer number (861843840).

Almost surely, 2^8422564155 is an apocalyptic number.

8422564155 is a deficient number, since it is larger than the sum of its proper divisors (5366937285).

8422564155 is a wasteful number, since it uses less digits than its factorization.

8422564155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13058290.

The product of its digits is 384000, while the sum is 42.

The square root of 8422564155 is about 91774.5289009974. The cubic root of 8422564155 is about 2034.6112549189.

The spelling of 8422564155 in words is "eight billion, four hundred twenty-two million, five hundred sixty-four thousand, one hundred fifty-five".