664954069055 has 8 divisors (see below), whose sum is σ = 798477210000. Its totient is φ = 531608370496.

The previous prime is 664954069051. The next prime is 664954069057. The reversal of 664954069055 is 550960459466.

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 664954069055 - 2² = 664954069051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 664954068985 and 664954069003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664954069051) 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, 44352350 + ... + 44367339.

It is an arithmetic number, because the mean of its divisors is an integer number (99809651250).

Almost surely, 2^664954069055 is an apocalyptic number.

664954069055 is a deficient number, since it is larger than the sum of its proper divisors (133523140945).

664954069055 is a wasteful number, since it uses less digits than its factorization.

664954069055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88721193.

The product of its (nonzero) digits is 34992000, while the sum is 59.

The spelling of 664954069055 in words is "six hundred sixty-four billion, nine hundred fifty-four million, sixty-nine thousand, fifty-five".