652321616 has 10 divisors (see below), whose sum is σ = 1263873162. Its totient is φ = 326160800.

The previous prime is 652321591. The next prime is 652321619. The reversal of 652321616 is 616123256.

It can be written as a sum of positive squares in only one way, i.e., 621006400 + 31315216 = 24920^2 + 5596^2 .

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (652321619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20385035 + ... + 20385066.

Almost surely, 2^652321616 is an apocalyptic number.

It is an amenable number.

652321616 is a deficient number, since it is larger than the sum of its proper divisors (611551546).

652321616 is a wasteful number, since it uses less digits than its factorization.

652321616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40770109 (or 40770103 counting only the distinct ones).

The product of its digits is 12960, while the sum is 32.

The square root of 652321616 is about 25540.5876204914. The cubic root of 652321616 is about 867.2692002008.

The spelling of 652321616 in words is "six hundred fifty-two million, three hundred twenty-one thousand, six hundred sixteen".