206426653265 has 16 divisors (see below), whose sum is σ = 287897708160. Its totient is φ = 139150556160.

The previous prime is 206426653259. The next prime is 206426653271. The reversal of 206426653265 is 562356624602.

It is an interprime number because it is at equal distance from previous prime (206426653259) and next prime (206426653271).

It is not a de Polignac number, because 206426653265 - 2⁶ = 206426653201 is a prime.

It is a super-2 number, since 2×206426653265² (a number of 23 digits) contains 22 as substring.

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, 49980176 + ... + 49984305.

It is an arithmetic number, because the mean of its divisors is an integer number (17993606760).

Almost surely, 2^206426653265 is an apocalyptic number.

It is an amenable number.

206426653265 is a deficient number, since it is larger than the sum of its proper divisors (81471054895).

206426653265 is an equidigital number, since it uses as much as digits as its factorization.

206426653265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99964552.

The product of its (nonzero) digits is 3110400, while the sum is 47.

The spelling of 206426653265 in words is "two hundred six billion, four hundred twenty-six million, six hundred fifty-three thousand, two hundred sixty-five".