664274677011 has 8 divisors (see below), whose sum is σ = 966217712064. Its totient is φ = 402590713320.

The previous prime is 664274676883. The next prime is 664274677019. The reversal of 664274677011 is 110776472466.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 664274677011 - 2⁷ = 664274676883 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (664274677019) 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, 10064767801 + ... + 10064767866.

It is an arithmetic number, because the mean of its divisors is an integer number (120777214008).

Almost surely, 2^664274677011 is an apocalyptic number.

664274677011 is a deficient number, since it is larger than the sum of its proper divisors (301943035053).

664274677011 is a wasteful number, since it uses less digits than its factorization.

664274677011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20129535681.

The product of its (nonzero) digits is 2370816, while the sum is 51.

The spelling of 664274677011 in words is "six hundred sixty-four billion, two hundred seventy-four million, six hundred seventy-seven thousand, eleven".