20602202404642 has 8 divisors (see below), whose sum is σ = 31017337938432. Its totient is φ = 10263089758500.

The previous prime is 20602202404639. The next prime is 20602202404661. The reversal of 20602202404642 is 24640420220602.

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

It is a junction number, because it is equal to n+sod(n) for n = 20602202404598 and 20602202404607.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19005721234 + ... + 19005722317.

It is an arithmetic number, because the mean of its divisors is an integer number (3877167242304).

Almost surely, 2^{20602202404642} is an apocalyptic number.

20602202404642 is a deficient number, since it is larger than the sum of its proper divisors (10415135533790).

20602202404642 is a wasteful number, since it uses less digits than its factorization.

20602202404642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38011443824.

The product of its (nonzero) digits is 73728, while the sum is 34.

The spelling of 20602202404642 in words is "twenty trillion, six hundred two billion, two hundred two million, four hundred four thousand, six hundred forty-two".