652870066 has 4 divisors (see below), whose sum is σ = 979305102. Its totient is φ = 326435032.

The previous prime is 652870051. The next prime is 652870067. The reversal of 652870066 is 660078256.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 494840025 + 158030041 = 22245^2 + 12571^2 .

It is not an unprimeable number, because it can be changed into a prime (652870067) 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 as a sum of consecutive naturals, namely, 163217515 + ... + 163217518.

Almost surely, 2^652870066 is an apocalyptic number.

652870066 is a deficient number, since it is larger than the sum of its proper divisors (326435036).

652870066 is a wasteful number, since it uses less digits than its factorization.

652870066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326435035.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 652870066 is about 25551.3221967083. The cubic root of 652870066 is about 867.5121890062.

The spelling of 652870066 in words is "six hundred fifty-two million, eight hundred seventy thousand, sixty-six".