10256115505 has 16 divisors (see below), whose sum is σ = 12412108800. Its totient is φ = 8135128512.

The previous prime is 10256115503. The next prime is 10256115523. The reversal of 10256115505 is 50551165201.

It is a cyclic number.

It is not a de Polignac number, because 10256115505 - 2¹ = 10256115503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10256115503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1233472 + ... + 1241758.

It is an arithmetic number, because the mean of its divisors is an integer number (775756800).

Almost surely, 2^10256115505 is an apocalyptic number.

It is an amenable number.

10256115505 is a deficient number, since it is larger than the sum of its proper divisors (2155993295).

10256115505 is a wasteful number, since it uses less digits than its factorization.

10256115505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10368.

The product of its (nonzero) digits is 7500, while the sum is 31.

The spelling of 10256115505 in words is "ten billion, two hundred fifty-six million, one hundred fifteen thousand, five hundred five".