7451866166 has 4 divisors (see below), whose sum is σ = 11177799252. Its totient is φ = 3725933082.

The previous prime is 7451866099. The next prime is 7451866223. The reversal of 7451866166 is 6616681547.

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

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1862966540 + ... + 1862966543.

It is an arithmetic number, because the mean of its divisors is an integer number (2794449813).

Almost surely, 2^7451866166 is an apocalyptic number.

7451866166 is a deficient number, since it is larger than the sum of its proper divisors (3725933086).

7451866166 is a wasteful number, since it uses less digits than its factorization.

7451866166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3725933085.

The product of its digits is 1451520, while the sum is 50.

The square root of 7451866166 is about 86324.1922406460. The cubic root of 7451866166 is about 1953.2373282796.

The spelling of 7451866166 in words is "seven billion, four hundred fifty-one million, eight hundred sixty-six thousand, one hundred sixty-six".