1604912448065 has 8 divisors (see below), whose sum is σ = 1949098491648. Its totient is φ = 1268460922480.

The previous prime is 1604912448031. The next prime is 1604912448071. The reversal of 1604912448065 is 5608442194061.

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

It is not a de Polignac number, because 1604912448065 - 2¹⁰ = 1604912447041 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1933629041 + ... + 1933629870.

It is an arithmetic number, because the mean of its divisors is an integer number (243637311456).

Almost surely, 2^{1604912448065} is an apocalyptic number.

It is an amenable number.

1604912448065 is a deficient number, since it is larger than the sum of its proper divisors (344186043583).

1604912448065 is an equidigital number, since it uses as much as digits as its factorization.

1604912448065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3867258999.

The product of its (nonzero) digits is 1658880, while the sum is 50.

The spelling of 1604912448065 in words is "one trillion, six hundred four billion, nine hundred twelve million, four hundred forty-eight thousand, sixty-five".