10565665537 has 8 divisors (see below), whose sum is σ = 12075732416. Its totient is φ = 9055770192.

The previous prime is 10565665477. The next prime is 10565665541. The reversal of 10565665537 is 73556656501.

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

It is a de Polignac number, because none of the positive numbers 2^k-10565665537 is a prime.

It is a super-2 number, since 2×10565665537² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10565665547) 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, 142618 + ... + 203644.

It is an arithmetic number, because the mean of its divisors is an integer number (1509466552).

Almost surely, 2^10565665537 is an apocalyptic number.

It is an amenable number.

10565665537 is a deficient number, since it is larger than the sum of its proper divisors (1510066879).

10565665537 is an equidigital number, since it uses as much as digits as its factorization.

10565665537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85767.

The product of its (nonzero) digits is 2835000, while the sum is 49.

The spelling of 10565665537 in words is "ten billion, five hundred sixty-five million, six hundred sixty-five thousand, five hundred thirty-seven".