161763203274 has 16 divisors (see below), whose sum is σ = 326729639520. Its totient is φ = 53387195600.

The previous prime is 161763203269. The next prime is 161763203281. The reversal of 161763203274 is 472302367161.

161763203274 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133467384 + ... + 133468595.

It is an arithmetic number, because the mean of its divisors is an integer number (20420602470).

Almost surely, 2^161763203274 is an apocalyptic number.

161763203274 is an abundant number, since it is smaller than the sum of its proper divisors (164966436246).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161763203274 is a wasteful number, since it uses less digits than its factorization.

161763203274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266936085.

The product of its (nonzero) digits is 254016, while the sum is 42.

The spelling of 161763203274 in words is "one hundred sixty-one billion, seven hundred sixty-three million, two hundred three thousand, two hundred seventy-four".