1600000641 has 16 divisors (see below), whose sum is σ = 2402845120. Its totient is φ = 1052053920.

The previous prime is 1600000627. The next prime is 1600000643. The reversal of 1600000641 is 1460000061.

1600000641 is a `hidden beast` number, since 1 + 600 + 0 + 0 + 0 + 64 + 1 = 666.

It is not a de Polignac number, because 1600000641 - 2⁵ = 1600000609 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1600000643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 403915 + ... + 407856.

It is an arithmetic number, because the mean of its divisors is an integer number (150177820).

Almost surely, 2^1600000641 is an apocalyptic number.

It is an amenable number.

1600000641 is a deficient number, since it is larger than the sum of its proper divisors (802844479).

1600000641 is an equidigital number, since it uses as much as digits as its factorization.

1600000641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811853 (or 811847 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1600000641 is about 40000.0080124992. The cubic root of 1600000641 is about 1169.6072514764.

The spelling of 1600000641 in words is "one billion, six hundred million, six hundred forty-one", and thus it is an aban number.