1600506601 has 4 divisors (see below), whose sum is σ = 1600589392. Its totient is φ = 1600423812.

The previous prime is 1600506577. The next prime is 1600506613. The reversal of 1600506601 is 1066050061.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1066050061 = 41 ⋅26001221.

It is a cyclic number.

It is not a de Polignac number, because 1600506601 - 2¹³ = 1600498409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1600506631) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4750 + ... + 56776.

It is an arithmetic number, because the mean of its divisors is an integer number (400147348).

Almost surely, 2^1600506601 is an apocalyptic number.

It is an amenable number.

1600506601 is a deficient number, since it is larger than the sum of its proper divisors (82791).

1600506601 is an equidigital number, since it uses as much as digits as its factorization.

1600506601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82790.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 1600506601 is about 40006.3320113204. The cubic root of 1600506601 is about 1169.7305247849.

Adding to 1600506601 its reverse (1066050061), we get a palindrome (2666556662).

The spelling of 1600506601 in words is "one billion, six hundred million, five hundred six thousand, six hundred one".