8266165508836 has 27 divisors (see below), whose sum is σ = 14507883568521. Its totient is φ = 4121090737344.

The previous prime is 8266165508831. The next prime is 8266165508837. The reversal of 8266165508836 is 6388055616628.

The square root of 8266165508836 is 2875094.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1498592188900 + 6767573319936 = 1224170^2 + 2601456^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8266165508831) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2179319356 + ... + 2179323148.

Almost surely, 2^{8266165508836} is an apocalyptic number.

8266165508836 is the 2875094-th square number.

It is an amenable number.

8266165508836 is a deficient number, since it is larger than the sum of its proper divisors (6241718059685).

8266165508836 is an frugal number, since it uses more digits than its factorization.

8266165508836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8348 (or 4174 counting only the distinct ones).

The product of its (nonzero) digits is 99532800, while the sum is 64.

Multiplying 8266165508836 by its sum of digits (64), we get a square (529034592565504 = 23000752²).

The spelling of 8266165508836 in words is "eight trillion, two hundred sixty-six billion, one hundred sixty-five million, five hundred eight thousand, eight hundred thirty-six".