20346512511653 has 8 divisors (see below), whose sum is σ = 20368090641888. Its totient is φ = 20324942298864.

The previous prime is 20346512511631. The next prime is 20346512511671. The reversal of 20346512511653 is 35611521564302.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20346512511653 - 2¹⁴ = 20346512495269 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20346512513653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3170126 + ... + 7123392.

It is an arithmetic number, because the mean of its divisors is an integer number (2546011330236).

Almost surely, 2^{20346512511653} is an apocalyptic number.

It is an amenable number.

20346512511653 is a deficient number, since it is larger than the sum of its proper divisors (21578130235).

20346512511653 is a wasteful number, since it uses less digits than its factorization.

20346512511653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3958723.

The product of its (nonzero) digits is 648000, while the sum is 44.

The spelling of 20346512511653 in words is "twenty trillion, three hundred forty-six billion, five hundred twelve million, five hundred eleven thousand, six hundred fifty-three".