16011385601 has 4 divisors (see below), whose sum is σ = 16191288900. Its totient is φ = 15831482304.

The previous prime is 16011385573. The next prime is 16011385609. The reversal of 16011385601 is 10658311061.

16011385601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10658311061 = 149 ⋅71532289.

It can be written as a sum of positive squares in 2 ways, for example, as 4854744976 + 11156640625 = 69676^2 + 105625^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16011385601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16011385609) 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 3 ways as a sum of consecutive naturals, for example, 89951516 + ... + 89951693.

It is an arithmetic number, because the mean of its divisors is an integer number (4047822225).

Almost surely, 2^16011385601 is an apocalyptic number.

It is an amenable number.

16011385601 is a deficient number, since it is larger than the sum of its proper divisors (179903299).

16011385601 is an equidigital number, since it uses as much as digits as its factorization.

16011385601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179903298.

The product of its (nonzero) digits is 4320, while the sum is 32.

Adding to 16011385601 its reverse (10658311061), we get a palindrome (26669696662).

The spelling of 16011385601 in words is "sixteen billion, eleven million, three hundred eighty-five thousand, six hundred one".