3665705756 has 6 divisors (see below), whose sum is σ = 6414985080. Its totient is φ = 1832852876.

The previous prime is 3665705723. The next prime is 3665705761. The reversal of 3665705756 is 6575075663.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 458213216 + ... + 458213223.

It is an arithmetic number, because the mean of its divisors is an integer number (1069164180).

Almost surely, 2^3665705756 is an apocalyptic number.

It is an amenable number.

3665705756 is a deficient number, since it is larger than the sum of its proper divisors (2749279324).

3665705756 is a wasteful number, since it uses less digits than its factorization.

3665705756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916426443 (or 916426441 counting only the distinct ones).

The product of its (nonzero) digits is 3969000, while the sum is 50.

The square root of 3665705756 is about 60545.0721033512. The cubic root of 3665705756 is about 1541.8869538614.

The spelling of 3665705756 in words is "three billion, six hundred sixty-five million, seven hundred five thousand, seven hundred fifty-six".