66654118430714 has 4 divisors (see below), whose sum is σ = 99981177646074. Its totient is φ = 33327059215356.

The previous prime is 66654118430687. The next prime is 66654118430729. The reversal of 66654118430714 is 41703481145666.

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., 63495127634689 + 3158990796025 = 7968383^2 + 1777355^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 66654118430714.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16663529607677 + ... + 16663529607680.

Almost surely, 2^{66654118430714} is an apocalyptic number.

66654118430714 is a deficient number, since it is larger than the sum of its proper divisors (33327059215360).

66654118430714 is a wasteful number, since it uses less digits than its factorization.

66654118430714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33327059215359.

The product of its (nonzero) digits is 11612160, while the sum is 56.

The spelling of 66654118430714 in words is "sixty-six trillion, six hundred fifty-four billion, one hundred eighteen million, four hundred thirty thousand, seven hundred fourteen".