10001615501 has 2 divisors, whose sum is σ = 10001615502. Its totient is φ = 10001615500.

The previous prime is 10001615479. The next prime is 10001615509. The reversal of 10001615501 is 10551610001.

10001615501 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6328043401 + 3673572100 = 79549^2 + 60610^2 .

It is an emirp because it is prime and its reverse (10551610001) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10001615501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10001615509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5000807750 + 5000807751.

It is an arithmetic number, because the mean of its divisors is an integer number (5000807751).

Almost surely, 2^10001615501 is an apocalyptic number.

It is an amenable number.

10001615501 is a deficient number, since it is larger than the sum of its proper divisors (1).

10001615501 is an equidigital number, since it uses as much as digits as its factorization.

10001615501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 150, while the sum is 20.

The spelling of 10001615501 in words is "ten billion, one million, six hundred fifteen thousand, five hundred one".