660170070 has 96 divisors (see below), whose sum is σ = 1989411840. Its totient is φ = 148760640.

The previous prime is 660170059. The next prime is 660170087. The reversal of 660170070 is 70071066.

660170070 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 37351 + ... + 52109.

It is an arithmetic number, because the mean of its divisors is an integer number (20723040).

Almost surely, 2^660170070 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 660170070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (994705920).

660170070 is an abundant number, since it is smaller than the sum of its proper divisors (1329241770).

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

660170070 is a wasteful number, since it uses less digits than its factorization.

660170070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14850 (or 14847 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The square root of 660170070 is about 25693.7749270130. The cubic root of 660170070 is about 870.7335470063.

The spelling of 660170070 in words is "six hundred sixty million, one hundred seventy thousand, seventy".