1604000022065 has 8 divisors (see below), whose sum is σ = 2199771458880. Its totient is φ = 1099885729392.

The previous prime is 1604000022061. The next prime is 1604000022073. The reversal of 1604000022065 is 5602200004061.

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

It is a cyclic number.

It is not a de Polignac number, because 1604000022065 - 2² = 1604000022061 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1604000022061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22914285995 + ... + 22914286064.

It is an arithmetic number, because the mean of its divisors is an integer number (274971432360).

Almost surely, 2^{1604000022065} is an apocalyptic number.

It is an amenable number.

1604000022065 is a deficient number, since it is larger than the sum of its proper divisors (595771436815).

1604000022065 is an equidigital number, since it uses as much as digits as its factorization.

1604000022065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45828572071.

The product of its (nonzero) digits is 2880, while the sum is 26.

The spelling of 1604000022065 in words is "one trillion, six hundred four billion, twenty-two thousand, sixty-five".