66115486 has 16 divisors (see below), whose sum is σ = 101533824. Its totient is φ = 32277024.

The previous prime is 66115481. The next prime is 66115487. The reversal of 66115486 is 68451166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66115481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22240 + ... + 25036.

It is an arithmetic number, because the mean of its divisors is an integer number (6345864).

Almost surely, 2^66115486 is an apocalyptic number.

66115486 is a deficient number, since it is larger than the sum of its proper divisors (35418338).

66115486 is a wasteful number, since it uses less digits than its factorization.

66115486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3075.

The product of its digits is 34560, while the sum is 37.

The square root of 66115486 is about 8131.1429700873. The cubic root of 66115486 is about 404.3595751414.

The spelling of 66115486 in words is "sixty-six million, one hundred fifteen thousand, four hundred eighty-six".