70956666 has 48 divisors (see below), whose sum is σ = 168524928. Its totient is φ = 21398400.

The previous prime is 70956647. The next prime is 70956667. The reversal of 70956666 is 66665907.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (70956667) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46975 + ... + 48461.

It is an arithmetic number, because the mean of its divisors is an integer number (3510936).

Almost surely, 2^70956666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70956666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84262464).

70956666 is an abundant number, since it is smaller than the sum of its proper divisors (97568262).

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

70956666 is a wasteful number, since it uses less digits than its factorization.

70956666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1747 (or 1744 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The square root of 70956666 is about 8423.5779808820. The cubic root of 70956666 is about 413.9975145128.

It can be divided in two parts, 709 and 56666, that added together give a palindrome (57375).

The spelling of 70956666 in words is "seventy million, nine hundred fifty-six thousand, six hundred sixty-six".