206231123664355 has 32 divisors (see below), whose sum is σ = 261168165656640. Its totient is φ = 155902524456960.

The previous prime is 206231123664299. The next prime is 206231123664383. The reversal of 206231123664355 is 553466321132602.

It is not a de Polignac number, because 206231123664355 - 2⁷ = 206231123664227 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 206231123664299 and 206231123664308.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63366745 + ... + 66541765.

It is an arithmetic number, because the mean of its divisors is an integer number (8161505176770).

Almost surely, 2^{206231123664355} is an apocalyptic number.

206231123664355 is a deficient number, since it is larger than the sum of its proper divisors (54937041992285).

206231123664355 is a wasteful number, since it uses less digits than its factorization.

206231123664355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3176791.

The product of its (nonzero) digits is 4665600, while the sum is 49.

Adding to 206231123664355 its reverse (553466321132602), we get a palindrome (759697444796957).

The spelling of 206231123664355 in words is "two hundred six trillion, two hundred thirty-one billion, one hundred twenty-three million, six hundred sixty-four thousand, three hundred fifty-five".