1601116547 has 4 divisors (see below), whose sum is σ = 1603921176. Its totient is φ = 1598311920.

The previous prime is 1601116511. The next prime is 1601116631. The reversal of 1601116547 is 7456111061.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7456111061 = 7 ⋅1065158723.

It is a cyclic number.

It is not a de Polignac number, because 1601116547 - 2⁸ = 1601116291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1601116247) 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, 1401458 + ... + 1402599.

It is an arithmetic number, because the mean of its divisors is an integer number (400980294).

Almost surely, 2^1601116547 is an apocalyptic number.

1601116547 is a deficient number, since it is larger than the sum of its proper divisors (2804629).

1601116547 is an equidigital number, since it uses as much as digits as its factorization.

1601116547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2804628.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 1601116547 is about 40013.9544034328. The cubic root of 1601116547 is about 1169.8790989592.

The spelling of 1601116547 in words is "one billion, six hundred one million, one hundred sixteen thousand, five hundred forty-seven".