664437012741012 has 96 divisors (see below), whose sum is σ = 1893268984400640. Its totient is φ = 177032943912960.

The previous prime is 664437012740983. The next prime is 664437012741013. The reversal of 664437012741012 is 210147210734466.

664437012741012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664437012741013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2134211439 + ... + 2134522742.

It is an arithmetic number, because the mean of its divisors is an integer number (19721551920840).

Almost surely, 2^{664437012741012} is an apocalyptic number.

It is an amenable number.

664437012741012 is an abundant number, since it is smaller than the sum of its proper divisors (1228831971659628).

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

664437012741012 is a wasteful number, since it uses less digits than its factorization.

664437012741012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4268734321 (or 4268734319 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 48.

The spelling of 664437012741012 in words is "six hundred sixty-four trillion, four hundred thirty-seven billion, twelve million, seven hundred forty-one thousand, twelve".