205072106272620 has 96 divisors (see below), whose sum is σ = 608102344382400. Its totient is φ = 51458591760384.

The previous prime is 205072106272597. The next prime is 205072106272633. The reversal of 205072106272620 is 26272601270502.

It is a super-2 number, since 2×205072106272620² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15470625 + ... + 25484984.

It is an arithmetic number, because the mean of its divisors is an integer number (6334399420650).

Almost surely, 2^{205072106272620} is an apocalyptic number.

205072106272620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

205072106272620 is an abundant number, since it is smaller than the sum of its proper divisors (403030238109780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

205072106272620 is a wasteful number, since it uses less digits than its factorization.

205072106272620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40960547 (or 40960545 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 42.

The spelling of 205072106272620 in words is "two hundred five trillion, seventy-two billion, one hundred six million, two hundred seventy-two thousand, six hundred twenty".