7145665448 has 8 divisors (see below), whose sum is σ = 13398122730. Its totient is φ = 3572832720.

The previous prime is 7145665427. The next prime is 7145665459. The reversal of 7145665448 is 8445665417.

It can be written as a sum of positive squares in only one way, i.e., 7066419844 + 79245604 = 84062^2 + 8902^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 7145665396 and 7145665405.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 446604083 + ... + 446604098.

Almost surely, 2^7145665448 is an apocalyptic number.

It is an amenable number.

7145665448 is a deficient number, since it is larger than the sum of its proper divisors (6252457282).

7145665448 is a wasteful number, since it uses less digits than its factorization.

7145665448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893208187 (or 893208183 counting only the distinct ones).

The product of its digits is 3225600, while the sum is 50.

The square root of 7145665448 is about 84532.0379974362. The cubic root of 7145665448 is about 1926.1091441818.

The spelling of 7145665448 in words is "seven billion, one hundred forty-five million, six hundred sixty-five thousand, four hundred forty-eight".