3665457916 has 12 divisors (see below), whose sum is σ = 6441392160. Its totient is φ = 1825060160.

The previous prime is 3665457911. The next prime is 3665457923. The reversal of 3665457916 is 6197545663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3665457911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1916125 + ... + 1918036.

It is an arithmetic number, because the mean of its divisors is an integer number (536782680).

Almost surely, 2^3665457916 is an apocalyptic number.

It is an amenable number.

3665457916 is a deficient number, since it is larger than the sum of its proper divisors (2775934244).

3665457916 is a wasteful number, since it uses less digits than its factorization.

3665457916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3834404 (or 3834402 counting only the distinct ones).

The product of its digits is 4082400, while the sum is 52.

The square root of 3665457916 is about 60543.0253290996. The cubic root of 3665457916 is about 1541.8522038568.

The spelling of 3665457916 in words is "three billion, six hundred sixty-five million, four hundred fifty-seven thousand, nine hundred sixteen".