2306216666 has 32 divisors (see below), whose sum is σ = 3918233088. Its totient is φ = 1010617920.

The previous prime is 2306216663. The next prime is 2306216681. The reversal of 2306216666 is 6666126032.

It is not an unprimeable number, because it can be changed into a prime (2306216663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15725 + ... + 69711.

It is an arithmetic number, because the mean of its divisors is an integer number (122444784).

Almost surely, 2^2306216666 is an apocalyptic number.

2306216666 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2306216666 is a deficient number, since it is larger than the sum of its proper divisors (1612016422).

2306216666 is a wasteful number, since it uses less digits than its factorization.

2306216666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54086.

The product of its (nonzero) digits is 93312, while the sum is 38.

The square root of 2306216666 is about 48023.0847197470. The cubic root of 2306216666 is about 1321.1943326507.

The spelling of 2306216666 in words is "two billion, three hundred six million, two hundred sixteen thousand, six hundred sixty-six".