5216665652 has 24 divisors (see below), whose sum is σ = 9972308640. Its totient is φ = 2368064160.

The previous prime is 5216665639. The next prime is 5216665661. The reversal of 5216665652 is 2565666125.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45002 + ... + 111617.

It is an arithmetic number, because the mean of its divisors is an integer number (415512860).

Almost surely, 2^5216665652 is an apocalyptic number.

It is an amenable number.

5216665652 is a deficient number, since it is larger than the sum of its proper divisors (4755642988).

5216665652 is a wasteful number, since it uses less digits than its factorization.

5216665652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157391 (or 157389 counting only the distinct ones).

The product of its digits is 648000, while the sum is 44.

The square root of 5216665652 is about 72226.4885758681. The cubic root of 5216665652 is about 1734.3270625116.

The spelling of 5216665652 in words is "five billion, two hundred sixteen million, six hundred sixty-five thousand, six hundred fifty-two".