161078135734 has 8 divisors (see below), whose sum is σ = 242275562208. Its totient is φ = 80319615000.

The previous prime is 161078135731. The next prime is 161078135737. The reversal of 161078135734 is 437531870161.

It is an interprime number because it is at equal distance from previous prime (161078135731) and next prime (161078135737).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161078135731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109725517 + ... + 109726984.

It is an arithmetic number, because the mean of its divisors is an integer number (30284445276).

Almost surely, 2^161078135734 is an apocalyptic number.

161078135734 is a deficient number, since it is larger than the sum of its proper divisors (81197426474).

161078135734 is a wasteful number, since it uses less digits than its factorization.

161078135734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219452870.

The product of its (nonzero) digits is 423360, while the sum is 46.

The spelling of 161078135734 in words is "one hundred sixty-one billion, seventy-eight million, one hundred thirty-five thousand, seven hundred thirty-four".