161858053380084 has 24 divisors (see below), whose sum is σ = 378366885119328. Its totient is φ = 53852956760160.

The previous prime is 161858053380073. The next prime is 161858053380103. The reversal of 161858053380084 is 480083350858161.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12465955722 + ... + 12465968705.

It is an arithmetic number, because the mean of its divisors is an integer number (15765286879972).

Almost surely, 2^{161858053380084} is an apocalyptic number.

It is an amenable number.

161858053380084 is an abundant number, since it is smaller than the sum of its proper divisors (216508831739244).

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

161858053380084 is a wasteful number, since it uses less digits than its factorization.

161858053380084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24931924975 (or 24931924973 counting only the distinct ones).

The product of its (nonzero) digits is 22118400, while the sum is 60.

The spelling of 161858053380084 in words is "one hundred sixty-one trillion, eight hundred fifty-eight billion, fifty-three million, three hundred eighty thousand, eighty-four".