206611104 has 96 divisors (see below), whose sum is σ = 624830976. Its totient is φ = 58556160.

The previous prime is 206611079. The next prime is 206611117. The reversal of 206611104 is 401116602.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86859 + ... + 89205.

It is an arithmetic number, because the mean of its divisors is an integer number (6508656).

Almost surely, 2^206611104 is an apocalyptic number.

206611104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 206611104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (312415488).

206611104 is an abundant number, since it is smaller than the sum of its proper divisors (418219872).

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

206611104 is a wasteful number, since it uses less digits than its factorization.

206611104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2498 (or 2490 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 206611104 is about 14373.9731459329. The cubic root of 206611104 is about 591.1774856947.

Adding to 206611104 its reverse (401116602), we get a palindrome (607727706).

The spelling of 206611104 in words is "two hundred six million, six hundred eleven thousand, one hundred four".