667462257168 has 320 divisors, whose sum is σ = 2076972398592. Its totient is φ = 180696821760.

The previous prime is 667462257113. The next prime is 667462257173. The reversal of 667462257168 is 861752264766.

It is a happy number.

667462257168 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 450074955 + ... + 450076437.

Almost surely, 2^667462257168 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 667462257168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1038486199296).

667462257168 is an abundant number, since it is smaller than the sum of its proper divisors (1409510141424).

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

667462257168 is a wasteful number, since it uses less digits than its factorization.

667462257168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2462 (or 2456 counting only the distinct ones).

The product of its digits is 40642560, while the sum is 60.

The spelling of 667462257168 in words is "six hundred sixty-seven billion, four hundred sixty-two million, two hundred fifty-seven thousand, one hundred sixty-eight".