70660566 has 16 divisors (see below), whose sum is σ = 157023600. Its totient is φ = 23553504.

The previous prime is 70660561. The next prime is 70660591. The reversal of 70660566 is 66506607.

It is a self number, because there is not a number n which added to its sum of digits gives 70660566.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70660561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 654211 + ... + 654318.

It is an arithmetic number, because the mean of its divisors is an integer number (9813975).

Almost surely, 2^70660566 is an apocalyptic number.

70660566 is an abundant number, since it is smaller than the sum of its proper divisors (86363034).

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

70660566 is a wasteful number, since it uses less digits than its factorization.

70660566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1308540 (or 1308534 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 70660566 is about 8405.9839400275. The cubic root of 70660566 is about 413.4208452986.

The spelling of 70660566 in words is "seventy million, six hundred sixty thousand, five hundred sixty-six".