10215505065 has 32 divisors (see below), whose sum is σ = 16443584640. Its totient is φ = 5415446016.

The previous prime is 10215505033. The next prime is 10215505081. The reversal of 10215505065 is 56050551201.

It is not a de Polignac number, because 10215505065 - 2⁵ = 10215505033 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1794714 + ... + 1800396.

It is an arithmetic number, because the mean of its divisors is an integer number (513862020).

Almost surely, 2^10215505065 is an apocalyptic number.

10215505065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10215505065 is a deficient number, since it is larger than the sum of its proper divisors (6228079575).

10215505065 is a wasteful number, since it uses less digits than its factorization.

10215505065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6393.

The product of its (nonzero) digits is 7500, while the sum is 30.

The spelling of 10215505065 in words is "ten billion, two hundred fifteen million, five hundred five thousand, sixty-five".