1600128533805 has 16 divisors (see below), whose sum is σ = 2560727304960. Its totient is φ = 853228001088.

The previous prime is 1600128533777. The next prime is 1600128533819. The reversal of 1600128533805 is 5083358210061.

It is not a de Polignac number, because 1600128533805 - 2⁶ = 1600128533741 is a prime.

It is a super-2 number, since 2×1600128533805² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10791637 + ... + 10938906.

It is an arithmetic number, because the mean of its divisors is an integer number (160045456560).

Almost surely, 2^{1600128533805} is an apocalyptic number.

1600128533805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1600128533805 is a deficient number, since it is larger than the sum of its proper divisors (960598771155).

1600128533805 is a wasteful number, since it uses less digits than its factorization.

1600128533805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21735460.

The product of its (nonzero) digits is 172800, while the sum is 42.

The spelling of 1600128533805 in words is "one trillion, six hundred billion, one hundred twenty-eight million, five hundred thirty-three thousand, eight hundred five".