66306287486 has 4 divisors (see below), whose sum is σ = 99459431232. Its totient is φ = 33153143742.

The previous prime is 66306287447. The next prime is 66306287497. The reversal of 66306287486 is 68478260366.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16576571870 + ... + 16576571873.

It is an arithmetic number, because the mean of its divisors is an integer number (24864857808).

Almost surely, 2^66306287486 is an apocalyptic number.

66306287486 is a deficient number, since it is larger than the sum of its proper divisors (33153143746).

66306287486 is a wasteful number, since it uses less digits than its factorization.

66306287486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33153143745.

The product of its (nonzero) digits is 13934592, while the sum is 56.

The spelling of 66306287486 in words is "sixty-six billion, three hundred six million, two hundred eighty-seven thousand, four hundred eighty-six".