1601161012 has 12 divisors (see below), whose sum is σ = 3056762016. Its totient is φ = 727800440.

The previous prime is 1601160983. The next prime is 1601161013. The reversal of 1601161012 is 2101611061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1601161013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18194968 + ... + 18195055.

It is an arithmetic number, because the mean of its divisors is an integer number (254730168).

Almost surely, 2^1601161012 is an apocalyptic number.

It is an amenable number.

1601161012 is a deficient number, since it is larger than the sum of its proper divisors (1455601004).

1601161012 is a wasteful number, since it uses less digits than its factorization.

1601161012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36390038 (or 36390036 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 1601161012 is about 40014.5100182421. The cubic root of 1601161012 is about 1169.8899285254.

Adding to 1601161012 its reverse (2101611061), we get a palindrome (3702772073).

The spelling of 1601161012 in words is "one billion, six hundred one million, one hundred sixty-one thousand, twelve".