1605040526404 has 24 divisors (see below), whose sum is σ = 3398909351040. Its totient is φ = 647411304576.

The previous prime is 1605040526393. The next prime is 1605040526413. The reversal of 1605040526404 is 4046250405061.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1685966464 + ... + 1685967415.

It is an arithmetic number, because the mean of its divisors is an integer number (141621222960).

Almost surely, 2^{1605040526404} is an apocalyptic number.

1605040526404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1605040526404 is an abundant number, since it is smaller than the sum of its proper divisors (1793868824636).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1605040526404 is a wasteful number, since it uses less digits than its factorization.

1605040526404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3371933907 (or 3371933905 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 37.

The spelling of 1605040526404 in words is "one trillion, six hundred five billion, forty million, five hundred twenty-six thousand, four hundred four".