8003815601 has 2 divisors, whose sum is σ = 8003815602. Its totient is φ = 8003815600.

The previous prime is 8003815553. The next prime is 8003815619. The reversal of 8003815601 is 1065183008.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6926400625 + 1077414976 = 83225^2 + 32824^2 .

It is a cyclic number.

It is not a de Polignac number, because 8003815601 - 2⁶ = 8003815537 is a prime.

It is a super-2 number, since 2×8003815601² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8003815201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4001907800 + 4001907801.

It is an arithmetic number, because the mean of its divisors is an integer number (4001907801).

Almost surely, 2^8003815601 is an apocalyptic number.

It is an amenable number.

8003815601 is a deficient number, since it is larger than the sum of its proper divisors (1).

8003815601 is an equidigital number, since it uses as much as digits as its factorization.

8003815601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 8003815601 is about 89464.0464153059. The cubic root of 8003815601 is about 2000.3179162120.

Adding to 8003815601 its reverse (1065183008), we get a palindrome (9068998609).

The spelling of 8003815601 in words is "eight billion, three million, eight hundred fifteen thousand, six hundred one".