66576353801 has 8 divisors (see below), whose sum is σ = 67292057664. Its totient is φ = 65861983440.

The previous prime is 66576353759. The next prime is 66576353881. The reversal of 66576353801 is 10835367566.

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-66576353801 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 66576353801.

It is not an unprimeable number, because it can be changed into a prime (66576353881) 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, 232826 + ... + 432851.

It is an arithmetic number, because the mean of its divisors is an integer number (8411507208).

Almost surely, 2^66576353801 is an apocalyptic number.

It is an amenable number.

66576353801 is a deficient number, since it is larger than the sum of its proper divisors (715703863).

66576353801 is a wasteful number, since it uses less digits than its factorization.

66576353801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666751.

The product of its (nonzero) digits is 2721600, while the sum is 50.

The spelling of 66576353801 in words is "sixty-six billion, five hundred seventy-six million, three hundred fifty-three thousand, eight hundred one".