652510651661 has 8 divisors (see below), whose sum is σ = 711984703584. Its totient is φ = 593062416720.

The previous prime is 652510651649. The next prime is 652510651697. The reversal of 652510651661 is 166156015256.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 652510651661 - 2²⁶ = 652443542797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (652510651361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6401375 + ... + 6502508.

It is an arithmetic number, because the mean of its divisors is an integer number (88998087948).

Almost surely, 2^652510651661 is an apocalyptic number.

It is an amenable number.

652510651661 is a deficient number, since it is larger than the sum of its proper divisors (59474051923).

652510651661 is a wasteful number, since it uses less digits than its factorization.

652510651661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12908491.

The product of its (nonzero) digits is 324000, while the sum is 44.

The spelling of 652510651661 in words is "six hundred fifty-two billion, five hundred ten million, six hundred fifty-one thousand, six hundred sixty-one".