161234886422 has 4 divisors (see below), whose sum is σ = 241852329636. Its totient is φ = 80617443210.

The previous prime is 161234886409. The next prime is 161234886431. The reversal of 161234886422 is 224688432161.

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, 40308721604 + ... + 40308721607.

It is an arithmetic number, because the mean of its divisors is an integer number (60463082409).

Almost surely, 2^161234886422 is an apocalyptic number.

161234886422 is a deficient number, since it is larger than the sum of its proper divisors (80617443214).

161234886422 is an equidigital number, since it uses as much as digits as its factorization.

161234886422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80617443213.

The product of its digits is 884736, while the sum is 47.

The spelling of 161234886422 in words is "one hundred sixty-one billion, two hundred thirty-four million, eight hundred eighty-six thousand, four hundred twenty-two".