161861760083 has 8 divisors (see below), whose sum is σ = 163544617152. Its totient is φ = 160179192576.

The previous prime is 161861760023. The next prime is 161861760091. The reversal of 161861760083 is 380067168161.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161861760083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161861760023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1159766 + ... + 1291812.

It is an arithmetic number, because the mean of its divisors is an integer number (20443077144).

Almost surely, 2^161861760083 is an apocalyptic number.

161861760083 is a deficient number, since it is larger than the sum of its proper divisors (1682857069).

161861760083 is a wasteful number, since it uses less digits than its factorization.

161861760083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144781.

The product of its (nonzero) digits is 290304, while the sum is 47.

The spelling of 161861760083 in words is "one hundred sixty-one billion, eight hundred sixty-one million, seven hundred sixty thousand, eighty-three".