161106421334 has 8 divisors (see below), whose sum is σ = 241780649328. Its totient is φ = 80512871560.

The previous prime is 161106421271. The next prime is 161106421363. The reversal of 161106421334 is 433124601161.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 161106421334.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20164562 + ... + 20172549.

It is an arithmetic number, because the mean of its divisors is an integer number (30222581166).

Almost surely, 2^161106421334 is an apocalyptic number.

161106421334 is a deficient number, since it is larger than the sum of its proper divisors (80674227994).

161106421334 is a wasteful number, since it uses less digits than its factorization.

161106421334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40339110.

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 161106421334 in words is "one hundred sixty-one billion, one hundred six million, four hundred twenty-one thousand, three hundred thirty-four".