1075455665945 has 4 divisors (see below), whose sum is σ = 1290546799140. Its totient is φ = 860364532752.

The previous prime is 1075455665939. The next prime is 1075455666011. The reversal of 1075455665945 is 5495665545701.

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

It can be written as a sum of positive squares in 2 ways, for example, as 163222464064 + 912233201881 = 404008^2 + 955109^2 .

It is a cyclic number.

It is not a de Polignac number, because 1075455665945 - 2¹⁸ = 1075455403801 is a prime.

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, 107545566590 + ... + 107545566599.

It is an arithmetic number, because the mean of its divisors is an integer number (322636699785).

Almost surely, 2^{1075455665945} is an apocalyptic number.

It is an amenable number.

1075455665945 is a deficient number, since it is larger than the sum of its proper divisors (215091133195).

1075455665945 is an equidigital number, since it uses as much as digits as its factorization.

1075455665945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215091133194.

The product of its (nonzero) digits is 113400000, while the sum is 62.

The spelling of 1075455665945 in words is "one trillion, seventy-five billion, four hundred fifty-five million, six hundred sixty-five thousand, nine hundred forty-five".