10256115621 has 8 divisors (see below), whose sum is σ = 14394548320. Its totient is φ = 6477546672.

The previous prime is 10256115607. The next prime is 10256115637. The reversal of 10256115621 is 12651165201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10256115621 - 2⁶ = 10256115557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10256115641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89965870 + ... + 89965983.

It is an arithmetic number, because the mean of its divisors is an integer number (1799318540).

Almost surely, 2^10256115621 is an apocalyptic number.

It is an amenable number.

10256115621 is a deficient number, since it is larger than the sum of its proper divisors (4138432699).

10256115621 is a wasteful number, since it uses less digits than its factorization.

10256115621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179931875.

The product of its (nonzero) digits is 3600, while the sum is 30.

The spelling of 10256115621 in words is "ten billion, two hundred fifty-six million, one hundred fifteen thousand, six hundred twenty-one".