206046260240 has 20 divisors (see below), whose sum is σ = 479057555244. Its totient is φ = 82418504064.

The previous prime is 206046260221. The next prime is 206046260261. The reversal of 206046260240 is 42062640602.

It can be written as a sum of positive squares in 2 ways, for example, as 130381655056 + 75664605184 = 361084^2 + 275072^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×206046260240² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 206046260197 and 206046260206.

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, 1287789047 + ... + 1287789206.

Almost surely, 2^206046260240 is an apocalyptic number.

206046260240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206046260240 is an abundant number, since it is smaller than the sum of its proper divisors (273011295004).

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

206046260240 is a wasteful number, since it uses less digits than its factorization.

206046260240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2575578266 (or 2575578260 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

The spelling of 206046260240 in words is "two hundred six billion, forty-six million, two hundred sixty thousand, two hundred forty".