652223661 has 8 divisors (see below), whose sum is σ = 872055360. Its totient is φ = 433603872.

The previous prime is 652223641. The next prime is 652223713. The reversal of 652223661 is 166322256.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 652223661 - 2⁹ = 652223149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (652223641) 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 in 7 ways as a sum of consecutive naturals, for example, 301720 + ... + 303873.

It is an arithmetic number, because the mean of its divisors is an integer number (109006920).

Almost surely, 2^652223661 is an apocalyptic number.

It is an amenable number.

652223661 is a deficient number, since it is larger than the sum of its proper divisors (219831699).

652223661 is a wasteful number, since it uses less digits than its factorization.

652223661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605955.

The product of its digits is 25920, while the sum is 33.

The square root of 652223661 is about 25538.6699144650. The cubic root of 652223661 is about 867.2257872559.

The spelling of 652223661 in words is "six hundred fifty-two million, two hundred twenty-three thousand, six hundred sixty-one".