10005515001 has 12 divisors (see below), whose sum is σ = 14491161828. Its totient is φ = 6652458144.

The previous prime is 10005514979. The next prime is 10005515017. The reversal of 10005515001 is 10051550001.

It can be written as a sum of positive squares in 2 ways, for example, as 7110536976 + 2894978025 = 84324^2 + 53805^2 .

It is not a de Polignac number, because 10005515001 - 2¹⁷ = 10005383929 is a prime.

It is a super-2 number, since 2×10005515001² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10005511001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1486890 + ... + 1493603.

It is an arithmetic number, because the mean of its divisors is an integer number (1207596819).

Almost surely, 2^10005515001 is an apocalyptic number.

It is an amenable number.

10005515001 is a deficient number, since it is larger than the sum of its proper divisors (4485646827).

10005515001 is a wasteful number, since it uses less digits than its factorization.

10005515001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2980872 (or 2980869 counting only the distinct ones).

The product of its (nonzero) digits is 125, while the sum is 18.

The spelling of 10005515001 in words is "ten billion, five million, five hundred fifteen thousand, one".