20346323653633 has 4 divisors (see below), whose sum is σ = 20451745019908. Its totient is φ = 20240902287360.

The previous prime is 20346323653631. The next prime is 20346323653679. The reversal of 20346323653633 is 33635632364302.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2726880860929 + 17619442792704 = 1651327^2 + 4197552^2 .

It is a cyclic number.

It is not a de Polignac number, because 20346323653633 - 2¹ = 20346323653631 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20346323653631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52710682848 + ... + 52710683233.

It is an arithmetic number, because the mean of its divisors is an integer number (5112936254977).

Almost surely, 2^{20346323653633} is an apocalyptic number.

It is an amenable number.

20346323653633 is a deficient number, since it is larger than the sum of its proper divisors (105421366275).

20346323653633 is a wasteful number, since it uses less digits than its factorization.

20346323653633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105421366274.

The product of its (nonzero) digits is 12597120, while the sum is 49.

The spelling of 20346323653633 in words is "twenty trillion, three hundred forty-six billion, three hundred twenty-three million, six hundred fifty-three thousand, six hundred thirty-three".