1665073244 has 6 divisors (see below), whose sum is σ = 2913878184. Its totient is φ = 832536620.

The previous prime is 1665073237. The next prime is 1665073253. The reversal of 1665073244 is 4423705661.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1665073198 and 1665073207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 208134152 + ... + 208134159.

It is an arithmetic number, because the mean of its divisors is an integer number (485646364).

Almost surely, 2^1665073244 is an apocalyptic number.

It is an amenable number.

1665073244 is a deficient number, since it is larger than the sum of its proper divisors (1248804940).

1665073244 is a wasteful number, since it uses less digits than its factorization.

1665073244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416268315 (or 416268313 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 38.

The square root of 1665073244 is about 40805.3090173325. The cubic root of 1665073244 is about 1185.2531387259.

The spelling of 1665073244 in words is "one billion, six hundred sixty-five million, seventy-three thousand, two hundred forty-four".