161441650120 has 32 divisors (see below), whose sum is σ = 363691681920. Its totient is φ = 64497021120.

The previous prime is 161441650099. The next prime is 161441650127. The reversal of 161441650120 is 21056144161.

It is not an unprimeable number, because it can be changed into a prime (161441650127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2455872 + ... + 2520751.

It is an arithmetic number, because the mean of its divisors is an integer number (11365365060).

Almost surely, 2^161441650120 is an apocalyptic number.

161441650120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161441650120 is an abundant number, since it is smaller than the sum of its proper divisors (202250031800).

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

161441650120 is a wasteful number, since it uses less digits than its factorization.

161441650120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4977445 (or 4977441 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

Adding to 161441650120 its reverse (21056144161), we get a palindrome (182497794281).

The spelling of 161441650120 in words is "one hundred sixty-one billion, four hundred forty-one million, six hundred fifty thousand, one hundred twenty".