2720147666 has 16 divisors (see below), whose sum is σ = 4114091520. Its totient is φ = 1348797840.

The previous prime is 2720147663. The next prime is 2720147723. The reversal of 2720147666 is 6667410272.

It is not an unprimeable number, because it can be changed into a prime (2720147663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 584300 + ... + 588936.

It is an arithmetic number, because the mean of its divisors is an integer number (257130720).

Almost surely, 2^2720147666 is an apocalyptic number.

2720147666 is a deficient number, since it is larger than the sum of its proper divisors (1393943854).

2720147666 is a wasteful number, since it uses less digits than its factorization.

2720147666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7009.

The product of its (nonzero) digits is 169344, while the sum is 41.

The square root of 2720147666 is about 52155.0349055583. The cubic root of 2720147666 is about 1395.9316696987.

The spelling of 2720147666 in words is "two billion, seven hundred twenty million, one hundred forty-seven thousand, six hundred sixty-six".