66088816093 has 8 divisors (see below), whose sum is σ = 66440389248. Its totient is φ = 65737773504.

The previous prime is 66088816091. The next prime is 66088816111. The reversal of 66088816093 is 39061888066.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 66088816093 - 2¹ = 66088816091 is a prime.

It is a super-2 number, since 2×66088816093² (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 (66088816091) 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, 118405 + ... + 382357.

It is an arithmetic number, because the mean of its divisors is an integer number (8305048656).

Almost surely, 2^66088816093 is an apocalyptic number.

It is an amenable number.

66088816093 is a deficient number, since it is larger than the sum of its proper divisors (351573155).

66088816093 is a wasteful number, since it uses less digits than its factorization.

66088816093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265283.

The product of its (nonzero) digits is 2985984, while the sum is 55.

The spelling of 66088816093 in words is "sixty-six billion, eighty-eight million, eight hundred sixteen thousand, ninety-three".