66239854314 has 64 divisors (see below), whose sum is σ = 140356177920. Its totient is φ = 20811922560.

The previous prime is 66239854297. The next prime is 66239854319. The reversal of 66239854314 is 41345893266.

It is not an unprimeable number, because it can be changed into a prime (66239854319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1079257 + ... + 1138979.

It is an arithmetic number, because the mean of its divisors is an integer number (2193065280).

Almost surely, 2^66239854314 is an apocalyptic number.

66239854314 is an abundant number, since it is smaller than the sum of its proper divisors (74116323606).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66239854314 is a wasteful number, since it uses less digits than its factorization.

66239854314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59915.

The product of its digits is 3732480, while the sum is 51.

The spelling of 66239854314 in words is "sixty-six billion, two hundred thirty-nine million, eight hundred fifty-four thousand, three hundred fourteen".