161489083860 has 96 divisors (see below), whose sum is σ = 541057466880. Its totient is φ = 39751157376.

The previous prime is 161489083859. The next prime is 161489083927. The reversal of 161489083860 is 68380984161.

161489083860 is a `hidden beast` number, since 1 + 6 + 1 + 489 + 0 + 83 + 86 + 0 = 666.

It is a super-2 number, since 2×161489083860² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 161489083797 and 161489083806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11495052 + ... + 11509091.

It is an arithmetic number, because the mean of its divisors is an integer number (5636015280).

Almost surely, 2^161489083860 is an apocalyptic number.

161489083860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161489083860 is an abundant number, since it is smaller than the sum of its proper divisors (379568383020).

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

161489083860 is a wasteful number, since it uses less digits than its factorization.

161489083860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23004174 (or 23004166 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 54.

The spelling of 161489083860 in words is "one hundred sixty-one billion, four hundred eighty-nine million, eighty-three thousand, eight hundred sixty".