660565561070 has 32 divisors (see below), whose sum is σ = 1265286744000. Its totient is φ = 247433826816.

The previous prime is 660565561067. The next prime is 660565561079. The reversal of 660565561070 is 70165565066.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660565561079) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9729185 + ... + 9796844.

It is an arithmetic number, because the mean of its divisors is an integer number (39540210750).

Almost surely, 2^660565561070 is an apocalyptic number.

660565561070 is a deficient number, since it is larger than the sum of its proper divisors (604721182930).

660565561070 is a wasteful number, since it uses less digits than its factorization.

660565561070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19526252.

The product of its (nonzero) digits is 1134000, while the sum is 47.

The spelling of 660565561070 in words is "six hundred sixty billion, five hundred sixty-five million, five hundred sixty-one thousand, seventy".