66670365077 has 8 divisors (see below), whose sum is σ = 74307528000. Its totient is φ = 59446021824.

The previous prime is 66670365071. The next prime is 66670365119. The reversal of 66670365077 is 77056307666.

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 66670365077 - 2⁸ = 66670364821 is a prime.

It is a super-2 number, since 2×66670365077² (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 (66670365071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103204577 + ... + 103205222.

It is an arithmetic number, because the mean of its divisors is an integer number (9288441000).

Almost surely, 2^66670365077 is an apocalyptic number.

It is an amenable number.

66670365077 is a deficient number, since it is larger than the sum of its proper divisors (7637162923).

66670365077 is a wasteful number, since it uses less digits than its factorization.

66670365077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206409835.

The product of its (nonzero) digits is 6667920, while the sum is 53.

The spelling of 66670365077 in words is "sixty-six billion, six hundred seventy million, three hundred sixty-five thousand, seventy-seven".