667066075500 has 192 divisors, whose sum is σ = 2187446317056. Its totient is φ = 156496320000.

The previous prime is 667066075463. The next prime is 667066075513. The reversal of 667066075500 is 5570660766.

It is a self number, because there is not a number n which added to its sum of digits gives 667066075500.

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, 140569 + ... + 1163568.

It is an arithmetic number, because the mean of its divisors is an integer number (11392949568).

Almost surely, 2^667066075500 is an apocalyptic number.

667066075500 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 667066075500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1093723158528).

667066075500 is an abundant number, since it is smaller than the sum of its proper divisors (1520380241556).

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

667066075500 is a wasteful number, since it uses less digits than its factorization.

667066075500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1304201 (or 1304189 counting only the distinct ones).

The product of its (nonzero) digits is 1587600, while the sum is 48.

The spelling of 667066075500 in words is "six hundred sixty-seven billion, sixty-six million, seventy-five thousand, five hundred".