664711474011452 has 48 divisors (see below), whose sum is σ = 1356561128697600. Its totient is φ = 284874854984496.

The previous prime is 664711474011413. The next prime is 664711474011457. The reversal of 664711474011452 is 254110474117466.

664711474011452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 664711474011394 and 664711474011403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664711474011457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 284413883 + ... + 286741485.

It is an arithmetic number, because the mean of its divisors is an integer number (28261690181200).

Almost surely, 2^{664711474011452} is an apocalyptic number.

It is an amenable number.

664711474011452 is an abundant number, since it is smaller than the sum of its proper divisors (691849654686148).

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

664711474011452 is a wasteful number, since it uses less digits than its factorization.

664711474011452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2535775 (or 2535759 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 53.

The spelling of 664711474011452 in words is "six hundred sixty-four trillion, seven hundred eleven billion, four hundred seventy-four million, eleven thousand, four hundred fifty-two".