206240220264 has 32 divisors (see below), whose sum is σ = 555262132320. Its totient is φ = 63458529216.

The previous prime is 206240220229. The next prime is 206240220349. The reversal of 206240220264 is 462022042602.

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, 330512862 + ... + 330513485.

It is an arithmetic number, because the mean of its divisors is an integer number (17351941635).

Almost surely, 2^206240220264 is an apocalyptic number.

206240220264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

206240220264 is an abundant number, since it is smaller than the sum of its proper divisors (349021912056).

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

206240220264 is a wasteful number, since it uses less digits than its factorization.

206240220264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661026369 (or 661026365 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 206240220264 its reverse (462022042602), we get a palindrome (668262262866).

The spelling of 206240220264 in words is "two hundred six billion, two hundred forty million, two hundred twenty thousand, two hundred sixty-four".