66200406719 has 8 divisors (see below), whose sum is σ = 69109619040. Its totient is φ = 63293772256.

The previous prime is 66200406683. The next prime is 66200406731. The reversal of 66200406719 is 91760400266.

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-66200406719 is a prime.

It is a super-2 number, since 2×66200406719² (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 (66200409719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 591884 + ... + 694785.

It is an arithmetic number, because the mean of its divisors is an integer number (8638702380).

Almost surely, 2^66200406719 is an apocalyptic number.

66200406719 is a deficient number, since it is larger than the sum of its proper divisors (2909212321).

66200406719 is a wasteful number, since it uses less digits than its factorization.

66200406719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1288929.

The product of its (nonzero) digits is 108864, while the sum is 41.

The spelling of 66200406719 in words is "sixty-six billion, two hundred million, four hundred six thousand, seven hundred nineteen".