1600655543 has 4 divisors (see below), whose sum is σ = 1600775808. Its totient is φ = 1600535280.

The previous prime is 1600655531. The next prime is 1600655561. The reversal of 1600655543 is 3455560061.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1600655543 - 2¹⁰ = 1600654519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1600655503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37271 + ... + 67752.

It is an arithmetic number, because the mean of its divisors is an integer number (400193952).

Almost surely, 2^1600655543 is an apocalyptic number.

1600655543 is a deficient number, since it is larger than the sum of its proper divisors (120265).

1600655543 is a wasteful number, since it uses less digits than its factorization.

1600655543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120264.

The product of its (nonzero) digits is 54000, while the sum is 35.

The square root of 1600655543 is about 40008.1934483426. The cubic root of 1600655543 is about 1169.7668084216.

The spelling of 1600655543 in words is "one billion, six hundred million, six hundred fifty-five thousand, five hundred forty-three".