66260652 has 12 divisors (see below), whose sum is σ = 154608216. Its totient is φ = 22086880.

The previous prime is 66260651. The next prime is 66260687. The reversal of 66260652 is 25606266.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (66260651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2760849 + ... + 2760872.

It is an arithmetic number, because the mean of its divisors is an integer number (12884018).

Almost surely, 2^66260652 is an apocalyptic number.

It is an amenable number.

66260652 is an abundant number, since it is smaller than the sum of its proper divisors (88347564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66260652 is a wasteful number, since it uses less digits than its factorization.

66260652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5521728 (or 5521726 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 66260652 is about 8140.0646189081. The cubic root of 66260652 is about 404.6553018921.

The spelling of 66260652 in words is "sixty-six million, two hundred sixty thousand, six hundred fifty-two".