20620355468 has 6 divisors (see below), whose sum is σ = 36085622076. Its totient is φ = 10310177732.

The previous prime is 20620355447. The next prime is 20620355471. The reversal of 20620355468 is 86455302602.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2577544430 + ... + 2577544437.

It is an arithmetic number, because the mean of its divisors is an integer number (6014270346).

Almost surely, 2^20620355468 is an apocalyptic number.

It is an amenable number.

20620355468 is a deficient number, since it is larger than the sum of its proper divisors (15465266608).

20620355468 is a wasteful number, since it uses less digits than its factorization.

20620355468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5155088871 (or 5155088869 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 41.

The spelling of 20620355468 in words is "twenty billion, six hundred twenty million, three hundred fifty-five thousand, four hundred sixty-eight".