667460552528 has 160 divisors (see below), whose sum is σ = 1632278027520. Its totient is φ = 256839598080.

The previous prime is 667460552519. The next prime is 667460552569. The reversal of 667460552528 is 825255064766.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (56).

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, 60822050 + ... + 60833022.

It is an arithmetic number, because the mean of its divisors is an integer number (10201737672).

Almost surely, 2^667460552528 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 667460552528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (816139013760).

667460552528 is an abundant number, since it is smaller than the sum of its proper divisors (964817474992).

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

667460552528 is a wasteful number, since it uses less digits than its factorization.

667460552528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11605 (or 11599 counting only the distinct ones).

The product of its (nonzero) digits is 24192000, while the sum is 56.

The spelling of 667460552528 in words is "six hundred sixty-seven billion, four hundred sixty million, five hundred fifty-two thousand, five hundred twenty-eight".