66357110659 has 4 divisors (see below), whose sum is σ = 75836697904. Its totient is φ = 56877523416.

The previous prime is 66357110653. The next prime is 66357110681. The reversal of 66357110659 is 95601175366.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 66357110659 - 2⁵ = 66357110627 is a prime.

It is a super-2 number, since 2×66357110659² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66357110653) 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 3 ways as a sum of consecutive naturals, for example, 4739793612 + ... + 4739793625.

It is an arithmetic number, because the mean of its divisors is an integer number (18959174476).

Almost surely, 2^66357110659 is an apocalyptic number.

66357110659 is a deficient number, since it is larger than the sum of its proper divisors (9479587245).

66357110659 is an equidigital number, since it uses as much as digits as its factorization.

66357110659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9479587244.

The product of its (nonzero) digits is 1020600, while the sum is 49.

The spelling of 66357110659 in words is "sixty-six billion, three hundred fifty-seven million, one hundred ten thousand, six hundred fifty-nine".