66066556051 has 8 divisors (see below), whose sum is σ = 69956311824. Its totient is φ = 62177187840.

The previous prime is 66066556013. The next prime is 66066556069. The reversal of 66066556051 is 15065566066.

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 66066556051 - 2²³ = 66058167443 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66066555992 and 66066556010.

It is not an unprimeable number, because it can be changed into a prime (66066556151) 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, 300736 + ... + 471778.

It is an arithmetic number, because the mean of its divisors is an integer number (8744538978).

Almost surely, 2^66066556051 is an apocalyptic number.

66066556051 is a deficient number, since it is larger than the sum of its proper divisors (3889755773).

66066556051 is a wasteful number, since it uses less digits than its factorization.

66066556051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193781.

The product of its (nonzero) digits is 972000, while the sum is 46.

The spelling of 66066556051 in words is "sixty-six billion, sixty-six million, five hundred fifty-six thousand, fifty-one".