206775225488 has 20 divisors (see below), whose sum is σ = 431444461308. Its totient is φ = 95434719360.

The previous prime is 206775225487. The next prime is 206775225499. The reversal of 206775225488 is 884522577602.

It can be written as a sum of positive squares in 2 ways, for example, as 46400606464 + 160374619024 = 215408^2 + 400468^2 .

It is a super-2 number, since 2×206775225488² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (206775225487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 497055623 + ... + 497056038.

Almost surely, 2^206775225488 is an apocalyptic number.

It is an amenable number.

206775225488 is an abundant number, since it is smaller than the sum of its proper divisors (224669235820).

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

206775225488 is a wasteful number, since it uses less digits than its factorization.

206775225488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 994111682 (or 994111676 counting only the distinct ones).

The product of its (nonzero) digits is 15052800, while the sum is 56.

The spelling of 206775225488 in words is "two hundred six billion, seven hundred seventy-five million, two hundred twenty-five thousand, four hundred eighty-eight".