206104155710459 has 2 divisors, whose sum is σ = 206104155710460. Its totient is φ = 206104155710458.

The previous prime is 206104155710437. The next prime is 206104155710501. The reversal of 206104155710459 is 954017551401602.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 206104155710459 - 2¹² = 206104155706363 is a prime.

It is a super-2 number, since 2×206104155710459² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (206104157710459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103052077855229 + 103052077855230.

It is an arithmetic number, because the mean of its divisors is an integer number (103052077855230).

Almost surely, 2^{206104155710459} is an apocalyptic number.

206104155710459 is a deficient number, since it is larger than the sum of its proper divisors (1).

206104155710459 is an equidigital number, since it uses as much as digits as its factorization.

206104155710459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512000, while the sum is 50.

The spelling of 206104155710459 in words is "two hundred six trillion, one hundred four billion, one hundred fifty-five million, seven hundred ten thousand, four hundred fifty-nine".