161288811074 has 16 divisors (see below), whose sum is σ = 256225184928. Its totient is φ = 75882660672.

The previous prime is 161288811049. The next prime is 161288811107. The reversal of 161288811074 is 470118882161.

It is a happy number.

161288811074 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 414752 + ... + 703275.

It is an arithmetic number, because the mean of its divisors is an integer number (16014074058).

Almost surely, 2^161288811074 is an apocalyptic number.

161288811074 is a deficient number, since it is larger than the sum of its proper divisors (94936373854).

161288811074 is a wasteful number, since it uses less digits than its factorization.

161288811074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122289.

The product of its (nonzero) digits is 172032, while the sum is 47.

The spelling of 161288811074 in words is "one hundred sixty-one billion, two hundred eighty-eight million, eight hundred eleven thousand, seventy-four".