66910459337 has 4 divisors (see below), whose sum is σ = 70432062480. Its totient is φ = 63388856196.

The previous prime is 66910459333. The next prime is 66910459349. The reversal of 66910459337 is 73395401966.

66910459337 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 66910459337 - 2² = 66910459333 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66910459333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1760801543 + ... + 1760801580.

It is an arithmetic number, because the mean of its divisors is an integer number (17608015620).

Almost surely, 2^66910459337 is an apocalyptic number.

It is an amenable number.

66910459337 is a deficient number, since it is larger than the sum of its proper divisors (3521603143).

66910459337 is a wasteful number, since it uses less digits than its factorization.

66910459337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3521603142.

The product of its (nonzero) digits is 3674160, while the sum is 53.

The spelling of 66910459337 in words is "sixty-six billion, nine hundred ten million, four hundred fifty-nine thousand, three hundred thirty-seven".