20020555355 has 16 divisors (see below), whose sum is σ = 24183762624. Its totient is φ = 15910502400.

The previous prime is 20020555349. The next prime is 20020555403. The reversal of 20020555355 is 55355502002.

It is not a de Polignac number, because 20020555355 - 2¹² = 20020551259 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1497179 + ... + 1510491.

It is an arithmetic number, because the mean of its divisors is an integer number (1511485164).

Almost surely, 2^20020555355 is an apocalyptic number.

20020555355 is a deficient number, since it is larger than the sum of its proper divisors (4163207269).

20020555355 is a wasteful number, since it uses less digits than its factorization.

20020555355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15286.

The product of its (nonzero) digits is 37500, while the sum is 32.

The spelling of 20020555355 in words is "twenty billion, twenty million, five hundred fifty-five thousand, three hundred fifty-five".