66536113 has 16 divisors (see below), whose sum is σ = 80784000. Its totient is φ = 53496576.

The previous prime is 66536089. The next prime is 66536117. The reversal of 66536113 is 31163566.

It is not a de Polignac number, because 66536113 - 2²⁵ = 32981681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66536117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43638 + ... + 45136.

It is an arithmetic number, because the mean of its divisors is an integer number (5049000).

Almost surely, 2^66536113 is an apocalyptic number.

It is an amenable number.

66536113 is a deficient number, since it is larger than the sum of its proper divisors (14247887).

66536113 is a wasteful number, since it uses less digits than its factorization.

66536113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1896.

The product of its digits is 9720, while the sum is 31.

The square root of 66536113 is about 8156.9671447175. The cubic root of 66536113 is about 405.2152754816.

Adding to 66536113 its reverse (31163566), we get a palindrome (97699679).

The spelling of 66536113 in words is "sixty-six million, five hundred thirty-six thousand, one hundred thirteen".