161829118371 has 16 divisors (see below), whose sum is σ = 222942218240. Its totient is φ = 104307600960.

The previous prime is 161829118343. The next prime is 161829118391. The reversal of 161829118371 is 173811928161.

It is not a de Polignac number, because 161829118371 - 2²² = 161824924067 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 161829118371.

It is not an unprimeable number, because it can be changed into a prime (161829118391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 719626 + ... + 917343.

It is an arithmetic number, because the mean of its divisors is an integer number (13933888640).

Almost surely, 2^161829118371 is an apocalyptic number.

161829118371 is a deficient number, since it is larger than the sum of its proper divisors (61113099869).

161829118371 is a wasteful number, since it uses less digits than its factorization.

161829118371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1638066.

The product of its digits is 145152, while the sum is 48.

The spelling of 161829118371 in words is "one hundred sixty-one billion, eight hundred twenty-nine million, one hundred eighteen thousand, three hundred seventy-one".