10264642565 has 4 divisors (see below), whose sum is σ = 12317571084. Its totient is φ = 8211714048.

The previous prime is 10264642559. The next prime is 10264642571. The reversal of 10264642565 is 56524646201.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (10264642559) and next prime (10264642571).

It can be written as a sum of positive squares in 2 ways, for example, as 1727067364 + 8537575201 = 41558^2 + 92399^2 .

It is a cyclic number.

It is not a de Polignac number, because 10264642565 - 2⁸ = 10264642309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1026464252 + ... + 1026464261.

It is an arithmetic number, because the mean of its divisors is an integer number (3079392771).

Almost surely, 2^10264642565 is an apocalyptic number.

It is an amenable number.

10264642565 is a deficient number, since it is larger than the sum of its proper divisors (2052928519).

10264642565 is an equidigital number, since it uses as much as digits as its factorization.

10264642565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2052928518.

The product of its (nonzero) digits is 345600, while the sum is 41.

The spelling of 10264642565 in words is "ten billion, two hundred sixty-four million, six hundred forty-two thousand, five hundred sixty-five".