1585065198098 has 18 divisors (see below), whose sum is σ = 2390257020501. Its totient is φ = 788335103304.

The previous prime is 1585065198091. The next prime is 1585065198169. The reversal of 1585065198098 is 8908915605851.

It can be written as a sum of positive squares in 2 ways, for example, as 1015533861169 + 569531336929 = 1007737^2 + 754673^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=890243.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1585065198091) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 350753483 + ... + 350758001.

Almost surely, 2^{1585065198098} is an apocalyptic number.

1585065198098 is a deficient number, since it is larger than the sum of its proper divisors (805191822403).

1585065198098 is an frugal number, since it uses more digits than its factorization.

1585065198098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9434 (or 4718 counting only the distinct ones).

The product of its (nonzero) digits is 31104000, while the sum is 65.

The spelling of 1585065198098 in words is "one trillion, five hundred eighty-five billion, sixty-five million, one hundred ninety-eight thousand, ninety-eight".