2872552666 has 8 divisors (see below), whose sum is σ = 4310085780. Its totient is φ = 1435857408.

The previous prime is 2872552637. The next prime is 2872552691. The reversal of 2872552666 is 6662552782.

It can be written as a sum of positive squares in 2 ways, for example, as 2155652041 + 716900625 = 46429^2 + 26775^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200821 + ... + 214648.

Almost surely, 2^2872552666 is an apocalyptic number.

2872552666 is a deficient number, since it is larger than the sum of its proper divisors (1437533114).

2872552666 is a wasteful number, since it uses less digits than its factorization.

2872552666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418928.

The product of its digits is 2419200, while the sum is 49.

The square root of 2872552666 is about 53596.2001078435. The cubic root of 2872552666 is about 1421.5299033665.

The spelling of 2872552666 in words is "two billion, eight hundred seventy-two million, five hundred fifty-two thousand, six hundred sixty-six".