66502113 has 8 divisors (see below), whose sum is σ = 93885408. Its totient is φ = 41726784.

The previous prime is 66502103. The next prime is 66502151. The reversal of 66502113 is 31120566.

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

It is not a de Polignac number, because 66502113 - 2⁵ = 66502081 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (66502103) 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, 651931 + ... + 652032.

It is an arithmetic number, because the mean of its divisors is an integer number (11735676).

Almost surely, 2^66502113 is an apocalyptic number.

It is an amenable number.

66502113 is a deficient number, since it is larger than the sum of its proper divisors (27383295).

66502113 is a wasteful number, since it uses less digits than its factorization.

66502113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1303983.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 66502113 is about 8154.8827704633. The cubic root of 66502113 is about 405.1462419591.

Adding to 66502113 its reverse (31120566), we get a palindrome (97622679).

The spelling of 66502113 in words is "sixty-six million, five hundred two thousand, one hundred thirteen".