3666866851 has 8 divisors (see below), whose sum is σ = 3752380080. Its totient is φ = 3581958432.

The previous prime is 3666866813. The next prime is 3666866881. The reversal of 3666866851 is 1586686663.

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

It is a cyclic number.

It is not a de Polignac number, because 3666866851 - 2⁹ = 3666866339 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3666866792 and 3666866801.

It is not an unprimeable number, because it can be changed into a prime (3666866881) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 138925 + ... + 163198.

It is an arithmetic number, because the mean of its divisors is an integer number (469047510).

Almost surely, 2^3666866851 is an apocalyptic number.

3666866851 is a deficient number, since it is larger than the sum of its proper divisors (85513229).

3666866851 is a wasteful number, since it uses less digits than its factorization.

3666866851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302405.

The product of its digits is 7464960, while the sum is 55.

The square root of 3666866851 is about 60554.6600271193. The cubic root of 3666866851 is about 1542.0497318151.

The spelling of 3666866851 in words is "three billion, six hundred sixty-six million, eight hundred sixty-six thousand, eight hundred fifty-one".