8667151997 has 6 divisors (see below), whose sum is σ = 10082197278. Its totient is φ = 7428987384.

The previous prime is 8667151993. The next prime is 8667152023. The reversal of 8667151997 is 7991517668.

8667151997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 6751251556 + 1915900441 = 82166^2 + 43771^2 .

It is not a de Polignac number, because 8667151997 - 2² = 8667151993 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8667151993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 88440278 + ... + 88440375.

It is an arithmetic number, because the mean of its divisors is an integer number (1680366213).

Almost surely, 2^8667151997 is an apocalyptic number.

It is an amenable number.

8667151997 is a deficient number, since it is larger than the sum of its proper divisors (1415045281).

8667151997 is a wasteful number, since it uses less digits than its factorization.

8667151997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176880667 (or 176880660 counting only the distinct ones).

The product of its digits is 5715360, while the sum is 59.

The square root of 8667151997 is about 93097.5402306635. The cubic root of 8667151997 is about 2054.1183911246.

The spelling of 8667151997 in words is "eight billion, six hundred sixty-seven million, one hundred fifty-one thousand, nine hundred ninety-seven".