1601162120 has 32 divisors (see below), whose sum is σ = 3603787200. Its totient is φ = 640256448.

The previous prime is 1601162117. The next prime is 1601162177. The reversal of 1601162120 is 212611061.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1601162092 and 1601162101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194651 + ... + 202709.

It is an arithmetic number, because the mean of its divisors is an integer number (112618350).

Almost surely, 2^1601162120 is an apocalyptic number.

1601162120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1601162120 is an abundant number, since it is smaller than the sum of its proper divisors (2002625080).

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

1601162120 is a wasteful number, since it uses less digits than its factorization.

1601162120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13037 (or 13033 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 1601162120 is about 40014.5238632175. The cubic root of 1601162120 is about 1169.8901983791.

Adding to 1601162120 its reverse (212611061), we get a palindrome (1813773181).

The spelling of 1601162120 in words is "one billion, six hundred one million, one hundred sixty-two thousand, one hundred twenty".