1346646661533 has 32 divisors (see below), whose sum is σ = 2098806480000. Its totient is φ = 852115372416.

The previous prime is 1346646661513. The next prime is 1346646661537. The reversal of 1346646661533 is 3351666466431.

It is not a de Polignac number, because 1346646661533 - 2⁸ = 1346646661277 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1346646661533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1346646661537) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14528848 + ... + 14621241.

It is an arithmetic number, because the mean of its divisors is an integer number (65587702500).

Almost surely, 2^{1346646661533} is an apocalyptic number.

It is an amenable number.

1346646661533 is a deficient number, since it is larger than the sum of its proper divisors (752159818467).

1346646661533 is a wasteful number, since it uses less digits than its factorization.

1346646661533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29150186 (or 29150180 counting only the distinct ones).

The product of its digits is 16796160, while the sum is 54.

The spelling of 1346646661533 in words is "one trillion, three hundred forty-six billion, six hundred forty-six million, six hundred sixty-one thousand, five hundred thirty-three".