1478366855065 has 4 divisors (see below), whose sum is σ = 1774040226084. Its totient is φ = 1182693484048.

The previous prime is 1478366854967. The next prime is 1478366855117. The reversal of 1478366855065 is 5605586638741.

It is a happy number.

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 201586632256 + 1276780222809 = 448984^2 + 1129947^2 .

It is a cyclic number.

It is not a de Polignac number, because 1478366855065 - 2¹¹ = 1478366853017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1478366854988 and 1478366855006.

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, 147836685502 + ... + 147836685511.

It is an arithmetic number, because the mean of its divisors is an integer number (443510056521).

Almost surely, 2^{1478366855065} is an apocalyptic number.

It is an amenable number.

1478366855065 is a deficient number, since it is larger than the sum of its proper divisors (295673371019).

1478366855065 is an equidigital number, since it uses as much as digits as its factorization.

1478366855065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295673371018.

The product of its (nonzero) digits is 145152000, while the sum is 64.

The spelling of 1478366855065 in words is "one trillion, four hundred seventy-eight billion, three hundred sixty-six million, eight hundred fifty-five thousand, sixty-five".