20565355342 has 8 divisors (see below), whose sum is σ = 35254894896. Its totient is φ = 8813723712.

The previous prime is 20565355319. The next prime is 20565355357. The reversal of 20565355342 is 24355356502.

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 = 20565355295 and 20565355304.

It is a congruent number.

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, 734476963 + ... + 734476990.

It is an arithmetic number, because the mean of its divisors is an integer number (4406861862).

Almost surely, 2^20565355342 is an apocalyptic number.

20565355342 is a deficient number, since it is larger than the sum of its proper divisors (14689539554).

20565355342 is a wasteful number, since it uses less digits than its factorization.

20565355342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1468953962.

The product of its (nonzero) digits is 540000, while the sum is 40.

The spelling of 20565355342 in words is "twenty billion, five hundred sixty-five million, three hundred fifty-five thousand, three hundred forty-two".