206013211245 has 32 divisors (see below), whose sum is σ = 368143401600. Its totient is φ = 109304404992.

The previous prime is 206013211241. The next prime is 206013211253. The reversal of 206013211245 is 542112310602.

206013211245 is a `hidden beast` number, since 2 + 0 + 601 + 3 + 2 + 1 + 12 + 45 = 666.

It is not a de Polignac number, because 206013211245 - 2² = 206013211241 is a prime.

It is a super-3 number, since 3×206013211245³ (a number of 35 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206013211241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3927375 + ... + 3979484.

It is an arithmetic number, because the mean of its divisors is an integer number (11504481300).

Almost surely, 2^206013211245 is an apocalyptic number.

It is an amenable number.

206013211245 is a deficient number, since it is larger than the sum of its proper divisors (162130190355).

206013211245 is a wasteful number, since it uses less digits than its factorization.

206013211245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7907066 (or 7907060 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 206013211245 its reverse (542112310602), we get a palindrome (748125521847).

The spelling of 206013211245 in words is "two hundred six billion, thirteen million, two hundred eleven thousand, two hundred forty-five".