66570655337 has 8 divisors (see below), whose sum is σ = 71342465856. Its totient is φ = 61955297712.

The previous prime is 66570655309. The next prime is 66570655363. The reversal of 66570655337 is 73355607566.

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 66570655337 - 2¹² = 66570651241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66570655367) 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, 39112343 + ... + 39114044.

It is an arithmetic number, because the mean of its divisors is an integer number (8917808232).

Almost surely, 2^66570655337 is an apocalyptic number.

It is an amenable number.

66570655337 is a deficient number, since it is larger than the sum of its proper divisors (4771810519).

66570655337 is a wasteful number, since it uses less digits than its factorization.

66570655337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78226447.

The product of its (nonzero) digits is 11907000, while the sum is 53.

The spelling of 66570655337 in words is "sixty-six billion, five hundred seventy million, six hundred fifty-five thousand, three hundred thirty-seven".