1640006113 has 16 divisors (see below), whose sum is σ = 1709683200. Its totient is φ = 1571466240.

The previous prime is 1640006087. The next prime is 1640006131. The reversal of 1640006113 is 3116000461.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1640006113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1640006153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1608918 + ... + 1609936.

It is an arithmetic number, because the mean of its divisors is an integer number (106855200).

Almost surely, 2^1640006113 is an apocalyptic number.

It is an amenable number.

1640006113 is a deficient number, since it is larger than the sum of its proper divisors (69677087).

1640006113 is a wasteful number, since it uses less digits than its factorization.

1640006113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1512.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1640006113 is about 40496.9889374506. The cubic root of 1640006113 is about 1179.2751732159.

Adding to 1640006113 its reverse (3116000461), we get a palindrome (4756006574).

The spelling of 1640006113 in words is "one billion, six hundred forty million, six thousand, one hundred thirteen".