1066636625245 has 8 divisors (see below), whose sum is σ = 1311182583480. Its totient is φ = 832496878080.

The previous prime is 1066636625239. The next prime is 1066636625267. The reversal of 1066636625245 is 5425266366601.

It can be written as a sum of positive squares in 4 ways, for example, as 111757827204 + 954878798041 = 334302^2 + 977179^2 .

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

It is not a de Polignac number, because 1066636625245 - 2²⁷ = 1066502407517 is a prime.

It is a super-2 number, since 2×1066636625245² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1066636625192 and 1066636625201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2601552540 + ... + 2601552949.

It is an arithmetic number, because the mean of its divisors is an integer number (163897822935).

Almost surely, 2^{1066636625245} is an apocalyptic number.

It is an amenable number.

1066636625245 is a deficient number, since it is larger than the sum of its proper divisors (244545958235).

1066636625245 is an equidigital number, since it uses as much as digits as its factorization.

1066636625245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5203105535.

The product of its (nonzero) digits is 9331200, while the sum is 52.

The spelling of 1066636625245 in words is "one trillion, sixty-six billion, six hundred thirty-six million, six hundred twenty-five thousand, two hundred forty-five".