206124922449 has 10 divisors (see below), whose sum is σ = 307915007730. Its totient is φ = 137416614912.

The previous prime is 206124922447. The next prime is 206124922477. The reversal of 206124922449 is 944229421602.

It is a happy number.

206124922449 is a `hidden beast` number, since 2 + 0 + 612 + 4 + 9 + 2 + 24 + 4 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 155762830224 + 50362092225 = 394668^2 + 224415^2 .

It is not a de Polignac number, because 206124922449 - 2¹ = 206124922447 is a prime.

It is not an unprimeable number, because it can be changed into a prime (206124922441) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1272375984 + ... + 1272376145.

It is an arithmetic number, because the mean of its divisors is an integer number (30791500773).

Almost surely, 2^206124922449 is an apocalyptic number.

It is an amenable number.

206124922449 is a deficient number, since it is larger than the sum of its proper divisors (101790085281).

206124922449 is an equidigital number, since it uses as much as digits as its factorization.

206124922449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2544752141 (or 2544752132 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The spelling of 206124922449 in words is "two hundred six billion, one hundred twenty-four million, nine hundred twenty-two thousand, four hundred forty-nine".