3662211865 has 16 divisors (see below), whose sum is σ = 4778661888. Its totient is φ = 2678141376.

The previous prime is 3662211821. The next prime is 3662211871. The reversal of 3662211865 is 5681122663.

3662211865 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 3662211865 - 2¹⁹ = 3661687577 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 266809 + ... + 280198.

It is an arithmetic number, because the mean of its divisors is an integer number (298666368).

Almost surely, 2^3662211865 is an apocalyptic number.

It is an amenable number.

3662211865 is a deficient number, since it is larger than the sum of its proper divisors (1116450023).

3662211865 is a wasteful number, since it uses less digits than its factorization.

3662211865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547128.

The product of its digits is 103680, while the sum is 40.

The square root of 3662211865 is about 60516.2115883009. The cubic root of 3662211865 is about 1541.3969256760.

The spelling of 3662211865 in words is "three billion, six hundred sixty-two million, two hundred eleven thousand, eight hundred sixty-five".