1605942541550 has 24 divisors (see below), whose sum is σ = 2987108674416. Its totient is φ = 642365071040.

The previous prime is 1605942541543. The next prime is 1605942541561. The reversal of 1605942541550 is 551452495061.

It is a junction number, because it is equal to n+sod(n) for n = 1605942541495 and 1605942541504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2718887 + ... + 3256413.

It is an arithmetic number, because the mean of its divisors is an integer number (124462861434).

Almost surely, 2^{1605942541550} is an apocalyptic number.

1605942541550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1605942541550 is a deficient number, since it is larger than the sum of its proper divisors (1381166132866).

1605942541550 is a wasteful number, since it uses less digits than its factorization.

1605942541550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597292 (or 597287 counting only the distinct ones).

The product of its (nonzero) digits is 1080000, while the sum is 47.

The spelling of 1605942541550 in words is "one trillion, six hundred five billion, nine hundred forty-two million, five hundred forty-one thousand, five hundred fifty".