66413402486714 has 4 divisors (see below), whose sum is σ = 99620103730074. Its totient is φ = 33206701243356.

The previous prime is 66413402486713. The next prime is 66413402486731. The reversal of 66413402486714 is 41768420431466.

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., 57186188244025 + 9227214242689 = 7562155^2 + 3037633^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 66413402486714.

It is not an unprimeable number, because it can be changed into a prime (66413402486713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16603350621677 + ... + 16603350621680.

Almost surely, 2^{66413402486714} is an apocalyptic number.

66413402486714 is a deficient number, since it is larger than the sum of its proper divisors (33206701243360).

66413402486714 is a wasteful number, since it uses less digits than its factorization.

66413402486714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33206701243359.

The product of its (nonzero) digits is 18579456, while the sum is 56.

The spelling of 66413402486714 in words is "sixty-six trillion, four hundred thirteen billion, four hundred two million, four hundred eighty-six thousand, seven hundred fourteen".