161355314894 has 16 divisors (see below), whose sum is σ = 246050216448. Its totient is φ = 79342544952.

The previous prime is 161355314821. The next prime is 161355314903. The reversal of 161355314894 is 498413553161.

161355314894 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 a congruent 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, 910544 + ... + 1073219.

It is an arithmetic number, because the mean of its divisors is an integer number (15378138528).

Almost surely, 2^161355314894 is an apocalyptic number.

161355314894 is a deficient number, since it is larger than the sum of its proper divisors (84694901554).

161355314894 is a wasteful number, since it uses less digits than its factorization.

161355314894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1984439.

The product of its digits is 1555200, while the sum is 50.

The spelling of 161355314894 in words is "one hundred sixty-one billion, three hundred fifty-five million, three hundred fourteen thousand, eight hundred ninety-four".