652166705 has 8 divisors (see below), whose sum is σ = 801688104. Its totient is φ = 509008000.

The previous prime is 652166701. The next prime is 652166719. The reversal of 652166705 is 507661256.

It can be written as a sum of positive squares in 4 ways, for example, as 67881121 + 584285584 = 8239^2 + 24172^2 .

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

It is not a de Polignac number, because 652166705 - 2² = 652166701 is a prime.

It is a super-2 number, since 2×652166705² = 850642822221114050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (652166701) 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, 1590446 + ... + 1590855.

It is an arithmetic number, because the mean of its divisors is an integer number (100211013).

Almost surely, 2^652166705 is an apocalyptic number.

It is an amenable number.

652166705 is a deficient number, since it is larger than the sum of its proper divisors (149521399).

652166705 is a wasteful number, since it uses less digits than its factorization.

652166705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3181347.

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 652166705 is about 25537.5547968086. The cubic root of 652166705 is about 867.2005427717.

The spelling of 652166705 in words is "six hundred fifty-two million, one hundred sixty-six thousand, seven hundred five".