1616317564 has 12 divisors (see below), whose sum is σ = 2864360800. Its totient is φ = 797928768.

The previous prime is 1616317541. The next prime is 1616317589. The reversal of 1616317564 is 4657136161.

It is a super-2 number, since 2×1616317564² = 5224964935389788192, which 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 3 ways as a sum of consecutive naturals, for example, 2557149 + ... + 2557780.

Almost surely, 2^1616317564 is an apocalyptic number.

It is an amenable number.

1616317564 is a deficient number, since it is larger than the sum of its proper divisors (1248043236).

1616317564 is a wasteful number, since it uses less digits than its factorization.

1616317564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5115012 (or 5115010 counting only the distinct ones).

The product of its digits is 90720, while the sum is 40.

The square root of 1616317564 is about 40203.4521403324. The cubic root of 1616317564 is about 1173.5697252774.

The spelling of 1616317564 in words is "one billion, six hundred sixteen million, three hundred seventeen thousand, five hundred sixty-four".