1066635241265 has 8 divisors (see below), whose sum is σ = 1396322497728. Its totient is φ = 775734720880.

The previous prime is 1066635241219. The next prime is 1066635241267. The reversal of 1066635241265 is 5621425366601.

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

It is not a de Polignac number, because 1066635241265 - 2¹⁴ = 1066635224881 is a prime.

It is a super-2 number, since 2×1066635241265² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1066635241267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9696683957 + ... + 9696684066.

It is an arithmetic number, because the mean of its divisors is an integer number (174540312216).

Almost surely, 2^{1066635241265} is an apocalyptic number.

It is an amenable number.

1066635241265 is a deficient number, since it is larger than the sum of its proper divisors (329687256463).

1066635241265 is a wasteful number, since it uses less digits than its factorization.

1066635241265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19393368039.

The product of its (nonzero) digits is 1555200, while the sum is 47.

The spelling of 1066635241265 in words is "one trillion, sixty-six billion, six hundred thirty-five million, two hundred forty-one thousand, two hundred sixty-five".