70066660 has 48 divisors (see below), whose sum is σ = 151683840. Its totient is φ = 27173120.

The previous prime is 70066621. The next prime is 70066669. The reversal of 70066660 is 6666007.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (70066669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122856 + ... + 123424.

It is an arithmetic number, because the mean of its divisors is an integer number (3160080).

Almost surely, 2^70066660 is an apocalyptic number.

It is an amenable number.

70066660 is an abundant number, since it is smaller than the sum of its proper divisors (81617180).

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

70066660 is a wasteful number, since it uses less digits than its factorization.

70066660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756 (or 754 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 70066660 is about 8370.5830143425. The cubic root of 70066660 is about 412.2593098469.

The spelling of 70066660 in words is "seventy million, sixty-six thousand, six hundred sixty".