1640116704 has 24 divisors (see below), whose sum is σ = 4305306600. Its totient is φ = 546705536.

The previous prime is 1640116703. The next prime is 1640116711. The reversal of 1640116704 is 4076110461.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1640116703) 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, 8542179 + ... + 8542370.

It is an arithmetic number, because the mean of its divisors is an integer number (179387775).

Almost surely, 2^1640116704 is an apocalyptic number.

It is an amenable number.

1640116704 is an abundant number, since it is smaller than the sum of its proper divisors (2665189896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1640116704 is a wasteful number, since it uses less digits than its factorization.

1640116704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17084562 (or 17084554 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 1640116704 is about 40498.3543369357. The cubic root of 1640116704 is about 1179.3016800864.

The spelling of 1640116704 in words is "one billion, six hundred forty million, one hundred sixteen thousand, seven hundred four".