660252067 has 8 divisors (see below), whose sum is σ = 673620480. Its totient is φ = 646956360.

The previous prime is 660252031. The next prime is 660252083. The reversal of 660252067 is 760252066.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 660252067 - 2¹⁹ = 659727779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (660252097) 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, 358 + ... + 36340.

It is an arithmetic number, because the mean of its divisors is an integer number (84202560).

Almost surely, 2^660252067 is an apocalyptic number.

660252067 is a deficient number, since it is larger than the sum of its proper divisors (13368413).

660252067 is a wasteful number, since it uses less digits than its factorization.

660252067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36353.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 660252067 is about 25695.3705363437. The cubic root of 660252067 is about 870.7695955874.

Subtracting 660252067 from its reverse (760252066), we obtain a palindrome (99999999).

The spelling of 660252067 in words is "six hundred sixty million, two hundred fifty-two thousand, sixty-seven".