1653916664 has 16 divisors (see below), whose sum is σ = 3120121320. Its totient is φ = 821884320.

The previous prime is 1653916633. The next prime is 1653916669. The reversal of 1653916664 is 4666193561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1653916669) 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, 632867 + ... + 635474.

Almost surely, 2^1653916664 is an apocalyptic number.

It is an amenable number.

1653916664 is a deficient number, since it is larger than the sum of its proper divisors (1466204656).

1653916664 is a wasteful number, since it uses less digits than its factorization.

1653916664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1268510 (or 1268506 counting only the distinct ones).

The product of its digits is 699840, while the sum is 47.

The square root of 1653916664 is about 40668.3742483026. The cubic root of 1653916664 is about 1182.5999990523.

The spelling of 1653916664 in words is "one billion, six hundred fifty-three million, nine hundred sixteen thousand, six hundred sixty-four".