20346655013655 has 16 divisors (see below), whose sum is σ = 32559391687680. Its totient is φ = 10849968118688.

The previous prime is 20346655013651. The next prime is 20346655013681. The reversal of 20346655013655 is 55631055664302.

It is a cyclic number.

It is not a de Polignac number, because 20346655013655 - 2² = 20346655013651 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20346655013598 and 20346655013607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20346655013651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98719995 + ... + 98925884.

It is an arithmetic number, because the mean of its divisors is an integer number (2034961980480).

Almost surely, 2^{20346655013655} is an apocalyptic number.

20346655013655 is a deficient number, since it is larger than the sum of its proper divisors (12212736674025).

20346655013655 is a wasteful number, since it uses less digits than its factorization.

20346655013655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197652750.

The product of its (nonzero) digits is 9720000, while the sum is 51.

The spelling of 20346655013655 in words is "twenty trillion, three hundred forty-six billion, six hundred fifty-five million, thirteen thousand, six hundred fifty-five".