652799616 has 128 divisors (see below), whose sum is σ = 2068070400. Its totient is φ = 178387968.

The previous prime is 652799611. The next prime is 652799629. The reversal of 652799616 is 616997256.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×652799616² = 852294677299494912, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (652799611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56545 + ... + 67103.

It is an arithmetic number, because the mean of its divisors is an integer number (16156800).

Almost surely, 2^652799616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 652799616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1034035200).

652799616 is an abundant number, since it is smaller than the sum of its proper divisors (1415270784).

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

652799616 is a wasteful number, since it uses less digits than its factorization.

652799616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10606 (or 10594 counting only the distinct ones).

The product of its digits is 1224720, while the sum is 51.

The square root of 652799616 is about 25549.9435615815. The cubic root of 652799616 is about 867.4809840057.

The spelling of 652799616 in words is "six hundred fifty-two million, seven hundred ninety-nine thousand, six hundred sixteen".