1065081202809 has 32 divisors (see below), whose sum is σ = 1679832376320. Its totient is φ = 593940714048.

The previous prime is 1065081202793. The next prime is 1065081202811. The reversal of 1065081202809 is 9082021805601.

It is a happy number.

It is not a de Polignac number, because 1065081202809 - 2⁴ = 1065081202793 is a prime.

It is a super-2 number, since 2×1065081202809² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1065081202819) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31229839 + ... + 31263924.

It is an arithmetic number, because the mean of its divisors is an integer number (52494761760).

Almost surely, 2^{1065081202809} is an apocalyptic number.

1065081202809 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1065081202809 is a deficient number, since it is larger than the sum of its proper divisors (614751173511).

1065081202809 is a wasteful number, since it uses less digits than its factorization.

1065081202809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62493821.

The product of its (nonzero) digits is 69120, while the sum is 42.

The spelling of 1065081202809 in words is "one trillion, sixty-five billion, eighty-one million, two hundred two thousand, eight hundred nine".