664562006427204 has 96 divisors (see below), whose sum is σ = 1866713160090240. Its totient is φ = 203641435597824.

The previous prime is 664562006427149. The next prime is 664562006427211. The reversal of 664562006427204 is 402724600265466.

664562006427204 is a `hidden beast` number, since 6 + 6 + 4 + 5 + 6 + 2 + 0 + 0 + 6 + 427 + 204 = 666.

It is a super-2 number, since 2×664562006427204² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4208780089 + ... + 4208937984.

It is an arithmetic number, because the mean of its divisors is an integer number (19444928750940).

Almost surely, 2^{664562006427204} is an apocalyptic number.

It is an amenable number.

664562006427204 is an abundant number, since it is smaller than the sum of its proper divisors (1202151153663036).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

664562006427204 is a wasteful number, since it uses less digits than its factorization.

664562006427204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8417718146 (or 8417718138 counting only the distinct ones).

The product of its (nonzero) digits is 23224320, while the sum is 54.

The spelling of 664562006427204 in words is "six hundred sixty-four trillion, five hundred sixty-two billion, six million, four hundred twenty-seven thousand, two hundred four".