161426307624206 has 4 divisors (see below), whose sum is σ = 242139461436312. Its totient is φ = 80713153812102.

The previous prime is 161426307624173. The next prime is 161426307624217. The reversal of 161426307624206 is 602426703624161.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40356576906050 + ... + 40356576906053.

It is an arithmetic number, because the mean of its divisors is an integer number (60534865359078).

Almost surely, 2^{161426307624206} is an apocalyptic number.

161426307624206 is a deficient number, since it is larger than the sum of its proper divisors (80713153812106).

161426307624206 is an equidigital number, since it uses as much as digits as its factorization.

161426307624206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80713153812105.

The product of its (nonzero) digits is 3483648, while the sum is 50.

The spelling of 161426307624206 in words is "one hundred sixty-one trillion, four hundred twenty-six billion, three hundred seven million, six hundred twenty-four thousand, two hundred six".