7688625166 has 4 divisors (see below), whose sum is σ = 11532937752. Its totient is φ = 3844312582.

The previous prime is 7688625149. The next prime is 7688625193. The reversal of 7688625166 is 6615268867.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6615268867 = 14159 ⋅467213.

It is a super-2 number, since 2×7688625166² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1922156290 + ... + 1922156293.

It is an arithmetic number, because the mean of its divisors is an integer number (2883234438).

Almost surely, 2^7688625166 is an apocalyptic number.

7688625166 is a deficient number, since it is larger than the sum of its proper divisors (3844312586).

7688625166 is a wasteful number, since it uses less digits than its factorization.

7688625166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3844312585.

The product of its digits is 5806080, while the sum is 55.

The square root of 7688625166 is about 87684.8057875479. The cubic root of 7688625166 is about 1973.7079764916.

The spelling of 7688625166 in words is "seven billion, six hundred eighty-eight million, six hundred twenty-five thousand, one hundred sixty-six".