652421875655 has 16 divisors (see below), whose sum is σ = 861915146400. Its totient is φ = 470135525760.

The previous prime is 652421875643. The next prime is 652421875691. The reversal of 652421875655 is 556578124256.

It is a happy number.

It is not a de Polignac number, because 652421875655 - 2¹² = 652421871559 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 652421875655.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54407840 + ... + 54419829.

It is an arithmetic number, because the mean of its divisors is an integer number (53869696650).

Almost surely, 2^652421875655 is an apocalyptic number.

652421875655 is a deficient number, since it is larger than the sum of its proper divisors (209493270745).

652421875655 is a wasteful number, since it uses less digits than its factorization.

652421875655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108827794.

The product of its digits is 20160000, while the sum is 56.

The spelling of 652421875655 in words is "six hundred fifty-two billion, four hundred twenty-one million, eight hundred seventy-five thousand, six hundred fifty-five".