66245872714 has 48 divisors (see below), whose sum is σ = 122437853640. Its totient is φ = 26710978560.

The previous prime is 66245872709. The next prime is 66245872717. The reversal of 66245872714 is 41727854266.

It can be written as a sum of positive squares in 4 ways, for example, as 47946547089 + 18299325625 = 218967^2 + 135275^2 .

It is not an unprimeable number, because it can be changed into a prime (66245872717) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5760282 + ... + 5771770.

Almost surely, 2^66245872714 is an apocalyptic number.

66245872714 is a deficient number, since it is larger than the sum of its proper divisors (56191980926).

66245872714 is a wasteful number, since it uses less digits than its factorization.

66245872714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14983 (or 14976 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 52.

The spelling of 66245872714 in words is "sixty-six billion, two hundred forty-five million, eight hundred seventy-two thousand, seven hundred fourteen".