7201819166 has 16 divisors (see below), whose sum is σ = 11648644560. Its totient is φ = 3328182720.

The previous prime is 7201819159. The next prime is 7201819187. The reversal of 7201819166 is 6619181027.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2309681 + ... + 2312796.

It is an arithmetic number, because the mean of its divisors is an integer number (728040285).

Almost surely, 2^7201819166 is an apocalyptic number.

7201819166 is a deficient number, since it is larger than the sum of its proper divisors (4446825394).

7201819166 is a wasteful number, since it uses less digits than its factorization.

7201819166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4622539.

The product of its (nonzero) digits is 36288, while the sum is 41.

The square root of 7201819166 is about 84863.5326038222. The cubic root of 7201819166 is about 1931.1413838000.

The spelling of 7201819166 in words is "seven billion, two hundred one million, eight hundred nineteen thousand, one hundred sixty-six".