664701265414270 has 64 divisors (see below), whose sum is σ = 1395301359052800. Its totient is φ = 227895931450656.

The previous prime is 664701265414211. The next prime is 664701265414313. The reversal of 664701265414270 is 72414562107466.

664701265414270 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×664701265414270² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

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, 534070837 + ... + 535313983.

It is an arithmetic number, because the mean of its divisors is an integer number (21801583735200).

Almost surely, 2^{664701265414270} is an apocalyptic number.

664701265414270 is an abundant number, since it is smaller than the sum of its proper divisors (730600093638530).

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

664701265414270 is a wasteful number, since it uses less digits than its factorization.

664701265414270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1399062 (or 1399048 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 55.

The spelling of 664701265414270 in words is "six hundred sixty-four trillion, seven hundred one billion, two hundred sixty-five million, four hundred fourteen thousand, two hundred seventy".