8167712605 has 16 divisors (see below), whose sum is σ = 10754357040. Its totient is φ = 5917736448.

The previous prime is 8167712603. The next prime is 8167712621. The reversal of 8167712605 is 5062177618.

It can be written as a sum of positive squares in 8 ways, for example, as 384591321 + 7783121284 = 19611^2 + 88222^2 .

It is not a de Polignac number, because 8167712605 - 2¹ = 8167712603 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8167712603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1182000 + ... + 1188889.

It is an arithmetic number, because the mean of its divisors is an integer number (672147315).

Almost surely, 2^8167712605 is an apocalyptic number.

It is an amenable number.

8167712605 is a deficient number, since it is larger than the sum of its proper divisors (2586644435).

8167712605 is a wasteful number, since it uses less digits than its factorization.

8167712605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2370960.

The product of its (nonzero) digits is 141120, while the sum is 43.

The square root of 8167712605 is about 90375.3982287215. The cubic root of 8167712605 is about 2013.8795072428.

The spelling of 8167712605 in words is "eight billion, one hundred sixty-seven million, seven hundred twelve thousand, six hundred five".