161146516 has 12 divisors (see below), whose sum is σ = 282915360. Its totient is φ = 80313560.

The previous prime is 161146501. The next prime is 161146529. The reversal of 161146516 is 615641161.

161146516 is digitally balanced in base 2, because in such base 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 3 ways as a sum of consecutive naturals, for example, 63526 + ... + 66013.

It is an arithmetic number, because the mean of its divisors is an integer number (23576280).

Almost surely, 2^161146516 is an apocalyptic number.

It is an amenable number.

161146516 is a deficient number, since it is larger than the sum of its proper divisors (121768844).

161146516 is a wasteful number, since it uses less digits than its factorization.

161146516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129854 (or 129852 counting only the distinct ones).

The product of its digits is 4320, while the sum is 31.

The square root of 161146516 is about 12694.3497667269. The cubic root of 161146516 is about 544.1771562941.

Adding to 161146516 its reverse (615641161), we get a palindrome (776787677).

The spelling of 161146516 in words is "one hundred sixty-one million, one hundred forty-six thousand, five hundred sixteen".