66337254719 has 8 divisors (see below), whose sum is σ = 67430827008. Its totient is φ = 65243878560.

The previous prime is 66337254677. The next prime is 66337254799. The reversal of 66337254719 is 91745273366.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66337254719 is a prime.

It is a super-2 number, since 2×66337254719² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66337254799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 735554 + ... + 820800.

It is an arithmetic number, because the mean of its divisors is an integer number (8428853376).

Almost surely, 2^66337254719 is an apocalyptic number.

66337254719 is a deficient number, since it is larger than the sum of its proper divisors (1093572289).

66337254719 is a wasteful number, since it uses less digits than its factorization.

66337254719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98065.

The product of its digits is 5715360, while the sum is 53.

The spelling of 66337254719 in words is "sixty-six billion, three hundred thirty-seven million, two hundred fifty-four thousand, seven hundred nineteen".