1600057645 has 4 divisors (see below), whose sum is σ = 1920069180. Its totient is φ = 1280046112.

The previous prime is 1600057643. The next prime is 1600057691. The reversal of 1600057645 is 5467500061.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5467500061 = 1979 ⋅2762759.

It can be written as a sum of positive squares in 2 ways, for example, as 1185975844 + 414081801 = 34438^2 + 20349^2 .

It is a cyclic number.

It is not a de Polignac number, because 1600057645 - 2¹ = 1600057643 is a prime.

It is a super-3 number, since 3×1600057645³ (a number of 29 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1600057645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1600057643) 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, 160005760 + ... + 160005769.

It is an arithmetic number, because the mean of its divisors is an integer number (480017295).

Almost surely, 2^1600057645 is an apocalyptic number.

It is an amenable number.

1600057645 is a deficient number, since it is larger than the sum of its proper divisors (320011535).

1600057645 is an equidigital number, since it uses as much as digits as its factorization.

1600057645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320011534.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 1600057645 is about 40000.7205560100. The cubic root of 1600057645 is about 1169.6211413667.

The spelling of 1600057645 in words is "one billion, six hundred million, fifty-seven thousand, six hundred forty-five".