3666072799 has 4 divisors (see below), whose sum is σ = 3666511264. Its totient is φ = 3665634336.

The previous prime is 3666072791. The next prime is 3666072829. The reversal of 3666072799 is 9972706663.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9972706663 = 89627 ⋅111269.

It is a cyclic number.

It is not a de Polignac number, because 3666072799 - 2³ = 3666072791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3666072791) 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 3 ways as a sum of consecutive naturals, for example, 206442 + ... + 223495.

It is an arithmetic number, because the mean of its divisors is an integer number (916627816).

Almost surely, 2^3666072799 is an apocalyptic number.

3666072799 is a deficient number, since it is larger than the sum of its proper divisors (438465).

3666072799 is an equidigital number, since it uses as much as digits as its factorization.

3666072799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438464.

The product of its (nonzero) digits is 5143824, while the sum is 55.

The square root of 3666072799 is about 60548.1031825110. The cubic root of 3666072799 is about 1541.9384146135.

The spelling of 3666072799 in words is "three billion, six hundred sixty-six million, seventy-two thousand, seven hundred ninety-nine".