1601160999 has 4 divisors (see below), whose sum is σ = 2134881336. Its totient is φ = 1067440664.

The previous prime is 1601160983. The next prime is 1601161013. The reversal of 1601160999 is 9990611061.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1601160999 - 2⁴ = 1601160983 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1601160999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1601160949) 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, 266860164 + ... + 266860169.

It is an arithmetic number, because the mean of its divisors is an integer number (533720334).

Almost surely, 2^1601160999 is an apocalyptic number.

1601160999 is a deficient number, since it is larger than the sum of its proper divisors (533720337).

1601160999 is an equidigital number, since it uses as much as digits as its factorization.

1601160999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533720336.

The product of its (nonzero) digits is 26244, while the sum is 42.

The square root of 1601160999 is about 40014.5098558011. The cubic root of 1601160999 is about 1169.8899253592.

The spelling of 1601160999 in words is "one billion, six hundred one million, one hundred sixty thousand, nine hundred ninety-nine".