20802640232635 has 8 divisors (see below), whose sum is σ = 25823967185520. Its totient is φ = 16068246248544.

The previous prime is 20802640232629. The next prime is 20802640232641. The reversal of 20802640232635 is 53623204620802.

It is an interprime number because it is at equal distance from previous prime (20802640232629) and next prime (20802640232641).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20802640232635 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20802640232591 and 20802640232600.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71733242037 + ... + 71733242326.

It is an arithmetic number, because the mean of its divisors is an integer number (3227995898190).

Almost surely, 2^{20802640232635} is an apocalyptic number.

20802640232635 is a deficient number, since it is larger than the sum of its proper divisors (5021326952885).

20802640232635 is a wasteful number, since it uses less digits than its factorization.

20802640232635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143466484397.

The product of its (nonzero) digits is 829440, while the sum is 43.

The spelling of 20802640232635 in words is "twenty trillion, eight hundred two billion, six hundred forty million, two hundred thirty-two thousand, six hundred thirty-five".