2905653666 has 32 divisors (see below), whose sum is σ = 6079276800. Its totient is φ = 924640640.

The previous prime is 2905653649. The next prime is 2905653671. The reversal of 2905653666 is 6663565092.

It is a nialpdrome in base 3 and base 9.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78330 + ... + 109301.

It is an arithmetic number, because the mean of its divisors is an integer number (189977400).

Almost surely, 2^2905653666 is an apocalyptic number.

2905653666 is an abundant number, since it is smaller than the sum of its proper divisors (3173623134).

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

2905653666 is a wasteful number, since it uses less digits than its factorization.

2905653666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187754.

The product of its (nonzero) digits is 1749600, while the sum is 48.

The square root of 2905653666 is about 53904.1154829573. The cubic root of 2905653666 is about 1426.9692549605.

The spelling of 2905653666 in words is "two billion, nine hundred five million, six hundred fifty-three thousand, six hundred sixty-six".