7206665166 has 12 divisors (see below), whose sum is σ = 15614441232. Its totient is φ = 2402221716.

The previous prime is 7206665159. The next prime is 7206665197. The reversal of 7206665166 is 6615666027.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 200185126 + ... + 200185161.

It is an arithmetic number, because the mean of its divisors is an integer number (1301203436).

Almost surely, 2^7206665166 is an apocalyptic number.

7206665166 is an abundant number, since it is smaller than the sum of its proper divisors (8407776066).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7206665166 is a wasteful number, since it uses less digits than its factorization.

7206665166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400370295 (or 400370292 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The square root of 7206665166 is about 84892.0795245351. The cubic root of 7206665166 is about 1931.5744323900.

The spelling of 7206665166 in words is "seven billion, two hundred six million, six hundred sixty-five thousand, one hundred sixty-six".