652121552165 has 16 divisors (see below), whose sum is σ = 794428687488. Its totient is φ = 513779340096.

The previous prime is 652121552153. The next prime is 652121552171. The reversal of 652121552165 is 561255121256.

It is a cyclic number.

It is not a de Polignac number, because 652121552165 - 2¹⁴ = 652121535781 is a prime.

It is a Duffinian number.

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, 1074059 + ... + 1567751.

It is an arithmetic number, because the mean of its divisors is an integer number (49651792968).

Almost surely, 2^652121552165 is an apocalyptic number.

It is an amenable number.

652121552165 is a deficient number, since it is larger than the sum of its proper divisors (142307135323).

652121552165 is a wasteful number, since it uses less digits than its factorization.

652121552165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497708.

The product of its digits is 180000, while the sum is 41.

The spelling of 652121552165 in words is "six hundred fifty-two billion, one hundred twenty-one million, five hundred fifty-two thousand, one hundred sixty-five".