3665350647 has 48 divisors (see below), whose sum is σ = 6302080512. Its totient is φ = 2009085120.

The previous prime is 3665350643. The next prime is 3665350657. The reversal of 3665350647 is 7460535663.

It is not a de Polignac number, because 3665350647 - 2² = 3665350643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3665350643) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 154428 + ... + 176574.

It is an arithmetic number, because the mean of its divisors is an integer number (131293344).

Almost surely, 2^3665350647 is an apocalyptic number.

3665350647 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

3665350647 is a deficient number, since it is larger than the sum of its proper divisors (2636729865).

3665350647 is a wasteful number, since it uses less digits than its factorization.

3665350647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22268 (or 22265 counting only the distinct ones).

The product of its (nonzero) digits is 1360800, while the sum is 45.

The square root of 3665350647 is about 60542.1394319692. The cubic root of 3665350647 is about 1541.8371630296.

The spelling of 3665350647 in words is "three billion, six hundred sixty-five million, three hundred fifty thousand, six hundred forty-seven".