210263256161 has 32 divisors (see below), whose sum is σ = 263277527040. Its totient is φ = 163732939776.

The previous prime is 210263256149. The next prime is 210263256163. The reversal of 210263256161 is 161652362012.

It is not a de Polignac number, because 210263256161 - 2²⁶ = 210196147297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210263256163) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24887840 + ... + 24896286.

It is an arithmetic number, because the mean of its divisors is an integer number (8227422720).

Almost surely, 2^210263256161 is an apocalyptic number.

It is an amenable number.

210263256161 is a deficient number, since it is larger than the sum of its proper divisors (53014270879).

210263256161 is a wasteful number, since it uses less digits than its factorization.

210263256161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15713.

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 210263256161 in words is "two hundred ten billion, two hundred sixty-three million, two hundred fifty-six thousand, one hundred sixty-one".