206432156163 has 16 divisors (see below), whose sum is σ = 276161114880. Its totient is φ = 137162941344.

The previous prime is 206432156159. The next prime is 206432156167. The reversal of 206432156163 is 361651234602.

It is an interprime number because it is at equal distance from previous prime (206432156159) and next prime (206432156167).

It is not a de Polignac number, because 206432156163 - 2² = 206432156159 is a prime.

It is a super-2 number, since 2×206432156163² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (206432156167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1258945 + ... + 1413437.

It is an arithmetic number, because the mean of its divisors is an integer number (17260069680).

Almost surely, 2^206432156163 is an apocalyptic number.

206432156163 is a deficient number, since it is larger than the sum of its proper divisors (69728958717).

206432156163 is a wasteful number, since it uses less digits than its factorization.

206432156163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155978.

The product of its (nonzero) digits is 155520, while the sum is 39.

The spelling of 206432156163 in words is "two hundred six billion, four hundred thirty-two million, one hundred fifty-six thousand, one hundred sixty-three".