10115556001 has 4 divisors (see below), whose sum is σ = 10179986452. Its totient is φ = 10051125552.

The previous prime is 10115555999. The next prime is 10115556013. The reversal of 10115556001 is 10065551101.

10115556001 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.

It can be written as a sum of positive squares in 2 ways, for example, as 4665573025 + 5449982976 = 68305^2 + 73824^2 .

It is a cyclic number.

It is not a de Polignac number, because 10115556001 - 2¹ = 10115555999 is a prime.

It is a super-2 number, since 2×10115556001² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10115556071) 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, 32214990 + ... + 32215303.

It is an arithmetic number, because the mean of its divisors is an integer number (2544996613).

Almost surely, 2^10115556001 is an apocalyptic number.

It is an amenable number.

10115556001 is a deficient number, since it is larger than the sum of its proper divisors (64430451).

10115556001 is an equidigital number, since it uses as much as digits as its factorization.

10115556001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64430450.

The product of its (nonzero) digits is 750, while the sum is 25.

The spelling of 10115556001 in words is "ten billion, one hundred fifteen million, five hundred fifty-six thousand, one".