23171298866 has 4 divisors (see below), whose sum is σ = 34756948302. Its totient is φ = 11585649432.

The previous prime is 23171298859. The next prime is 23171298883. The reversal of 23171298866 is 66889217132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 16159748641 + 7011550225 = 127121^2 + 83735^2 .

It is a super-2 number, since 2×23171298866² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5792824715 + ... + 5792824718.

Almost surely, 2^23171298866 is an apocalyptic number.

23171298866 is a deficient number, since it is larger than the sum of its proper divisors (11585649436).

23171298866 is a wasteful number, since it uses less digits than its factorization.

23171298866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11585649435.

The product of its digits is 1741824, while the sum is 53.

The spelling of 23171298866 in words is "twenty-three billion, one hundred seventy-one million, two hundred ninety-eight thousand, eight hundred sixty-six".