206222255661560 has 32 divisors (see below), whose sum is σ = 471864483298800. Its totient is φ = 81090785276160.

The previous prime is 206222255661529. The next prime is 206222255661613. The reversal of 206222255661560 is 65166552222602.

It is a super-3 number, since 3×206222255661560³ (a number of 44 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 206222255661499 and 206222255661508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43691153501 + ... + 43691158220.

Almost surely, 2^{206222255661560} is an apocalyptic number.

206222255661560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206222255661560 is an abundant number, since it is smaller than the sum of its proper divisors (265642227637240).

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

206222255661560 is a wasteful number, since it uses less digits than its factorization.

206222255661560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87382311791 (or 87382311787 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 50.

The spelling of 206222255661560 in words is "two hundred six trillion, two hundred twenty-two billion, two hundred fifty-five million, six hundred sixty-one thousand, five hundred sixty".