8165770770 has 32 divisors (see below), whose sum is σ = 19600273152. Its totient is φ = 2177269632.

The previous prime is 8165770721. The next prime is 8165770807. The reversal of 8165770770 is 770775618.

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, 395319 + ... + 415461.

It is an arithmetic number, because the mean of its divisors is an integer number (612508536).

Almost surely, 2^8165770770 is an apocalyptic number.

8165770770 is an abundant number, since it is smaller than the sum of its proper divisors (11434502382).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8165770770 is a wasteful number, since it uses less digits than its factorization.

8165770770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33666.

The product of its (nonzero) digits is 576240, while the sum is 48.

The square root of 8165770770 is about 90364.6544285984. The cubic root of 8165770770 is about 2013.7198978208.

The spelling of 8165770770 in words is "eight billion, one hundred sixty-five million, seven hundred seventy thousand, seven hundred seventy".