161426034634 has 8 divisors (see below), whose sum is σ = 254883212640. Its totient is φ = 76464963756.

The previous prime is 161426034631. The next prime is 161426034641. The reversal of 161426034634 is 436430624161.

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

It is not an unprimeable number, because it can be changed into a prime (161426034631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2124026734 + ... + 2124026809.

It is an arithmetic number, because the mean of its divisors is an integer number (31860401580).

Almost surely, 2^161426034634 is an apocalyptic number.

161426034634 is a deficient number, since it is larger than the sum of its proper divisors (93457178006).

161426034634 is a wasteful number, since it uses less digits than its factorization.

161426034634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4248053564.

The product of its (nonzero) digits is 248832, while the sum is 40.

Adding to 161426034634 its reverse (436430624161), we get a palindrome (597856658795).

The spelling of 161426034634 in words is "one hundred sixty-one billion, four hundred twenty-six million, thirty-four thousand, six hundred thirty-four".