7290866166 has 64 divisors (see below), whose sum is σ = 14981433600. Its totient is φ = 2364785280.

The previous prime is 7290866147. The next prime is 7290866173. The reversal of 7290866166 is 6616680927.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20890560 + ... + 20890908.

It is an arithmetic number, because the mean of its divisors is an integer number (234084900).

Almost surely, 2^7290866166 is an apocalyptic number.

7290866166 is an abundant number, since it is smaller than the sum of its proper divisors (7690567434).

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

7290866166 is a wasteful number, since it uses less digits than its factorization.

7290866166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909.

The product of its (nonzero) digits is 1306368, while the sum is 51.

The square root of 7290866166 is about 85386.5690023905. The cubic root of 7290866166 is about 1939.0680121470.

The spelling of 7290866166 in words is "seven billion, two hundred ninety million, eight hundred sixty-six thousand, one hundred sixty-six".