660008070 has 24 divisors (see below), whose sum is σ = 1716021216. Its totient is φ = 176002128.

The previous prime is 660008059. The next prime is 660008077. The reversal of 660008070 is 70800066.

It is a super-2 number, since 2×660008070² = 871221304930249800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660008077) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3666622 + ... + 3666801.

It is an arithmetic number, because the mean of its divisors is an integer number (71500884).

Almost surely, 2^660008070 is an apocalyptic number.

660008070 is an abundant number, since it is smaller than the sum of its proper divisors (1056013146).

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

660008070 is a wasteful number, since it uses less digits than its factorization.

660008070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7333436 (or 7333433 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 660008070 is about 25690.6222190121. The cubic root of 660008070 is about 870.6623176970.

The spelling of 660008070 in words is "six hundred sixty million, eight thousand, seventy".