163434046363261 has 16 divisors (see below), whose sum is σ = 176555388731904. Its totient is φ = 150710418802944.

The previous prime is 163434046363249. The next prime is 163434046363331. The reversal of 163434046363261 is 162363640434361.

It is a cyclic number.

It is not a de Polignac number, because 163434046363261 - 2²¹ = 163434044266109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 163434046363199 and 163434046363208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163434046363361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124098645 + ... + 125408698.

It is an arithmetic number, because the mean of its divisors is an integer number (11034711795744).

Almost surely, 2^{163434046363261} is an apocalyptic number.

It is an amenable number.

163434046363261 is a deficient number, since it is larger than the sum of its proper divisors (13121342368643).

163434046363261 is a wasteful number, since it uses less digits than its factorization.

163434046363261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249508140.

The product of its (nonzero) digits is 13436928, while the sum is 52.

The spelling of 163434046363261 in words is "one hundred sixty-three trillion, four hundred thirty-four billion, forty-six million, three hundred sixty-three thousand, two hundred sixty-one".