1665052311436 has 12 divisors (see below), whose sum is σ = 2915032343328. Its totient is φ = 832185927632.

The previous prime is 1665052311379. The next prime is 1665052311539. The reversal of 1665052311436 is 6341132505661.

It is a junction number, because it is equal to n+sod(n) for n = 1665052311392 and 1665052311401.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85046011 + ... + 85065586.

It is an arithmetic number, because the mean of its divisors is an integer number (242919361944).

Almost surely, 2^{1665052311436} is an apocalyptic number.

It is an amenable number.

1665052311436 is a deficient number, since it is larger than the sum of its proper divisors (1249980031892).

1665052311436 is a wasteful number, since it uses less digits than its factorization.

1665052311436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170114048 (or 170114046 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 43.

The spelling of 1665052311436 in words is "one trillion, six hundred sixty-five billion, fifty-two million, three hundred eleven thousand, four hundred thirty-six".