66486562 has 4 divisors (see below), whose sum is σ = 99729846. Its totient is φ = 33243280.

The previous prime is 66486551. The next prime is 66486571. The reversal of 66486562 is 26568466.

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

It can be written as a sum of positive squares in only one way, i.e., 66275881 + 210681 = 8141^2 + 459^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16621639 + ... + 16621642.

Almost surely, 2^66486562 is an apocalyptic number.

66486562 is a deficient number, since it is larger than the sum of its proper divisors (33243284).

66486562 is a wasteful number, since it uses less digits than its factorization.

66486562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33243283.

The product of its digits is 414720, while the sum is 43.

The square root of 66486562 is about 8153.9292368772. The cubic root of 66486562 is about 405.1146594018.

The spelling of 66486562 in words is "sixty-six million, four hundred eighty-six thousand, five hundred sixty-two".