1600656545 has 8 divisors (see below), whose sum is σ = 1942370280. Its totient is φ = 1266136960.

The previous prime is 1600656529. The next prime is 1600656557. The reversal of 1600656545 is 5456560061.

It can be written as a sum of positive squares in 4 ways, for example, as 28058209 + 1572598336 = 5297^2 + 39656^2 .

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

It is not a de Polignac number, because 1600656545 - 2⁴ = 1600656529 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1600656499 and 1600656508.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1798046 + ... + 1798935.

It is an arithmetic number, because the mean of its divisors is an integer number (242796285).

Almost surely, 2^1600656545 is an apocalyptic number.

It is an amenable number.

1600656545 is a deficient number, since it is larger than the sum of its proper divisors (341713735).

1600656545 is an equidigital number, since it uses as much as digits as its factorization.

1600656545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3597075.

The product of its (nonzero) digits is 108000, while the sum is 38.

The square root of 1600656545 is about 40008.2059707755. The cubic root of 1600656545 is about 1169.7670525103.

The spelling of 1600656545 in words is "one billion, six hundred million, six hundred fifty-six thousand, five hundred forty-five".