161346709107774 has 96 divisors (see below), whose sum is σ = 373444343157600. Its totient is φ = 50254733733120.

The previous prime is 161346709107763. The next prime is 161346709107791. The reversal of 161346709107774 is 477701907643161.

161346709107774 is a `hidden beast` number, since 1 + 6 + 1 + 346 + 70 + 91 + 0 + 77 + 74 = 666.

161346709107774 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 30526857 + ... + 35420084.

It is an arithmetic number, because the mean of its divisors is an integer number (3890045241225).

Almost surely, 2^{161346709107774} is an apocalyptic number.

161346709107774 is an abundant number, since it is smaller than the sum of its proper divisors (212097634049826).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161346709107774 is a wasteful number, since it uses less digits than its factorization.

161346709107774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65947130 (or 65947127 counting only the distinct ones).

The product of its (nonzero) digits is 37340352, while the sum is 63.

The spelling of 161346709107774 in words is "one hundred sixty-one trillion, three hundred forty-six billion, seven hundred nine million, one hundred seven thousand, seven hundred seventy-four".