70691166 has 96 divisors (see below), whose sum is σ = 190794240. Its totient is φ = 18418752.

The previous prime is 70691161. The next prime is 70691171. The reversal of 70691166 is 66119607.

It is an interprime number because it is at equal distance from previous prime (70691161) and next prime (70691171).

It is a self number, because there is not a number n which added to its sum of digits gives 70691166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70691161) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 168505 + ... + 168923.

It is an arithmetic number, because the mean of its divisors is an integer number (1987440).

Almost surely, 2^70691166 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70691166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95397120).

70691166 is an abundant number, since it is smaller than the sum of its proper divisors (120103074).

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

70691166 is a wasteful number, since it uses less digits than its factorization.

70691166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550 (or 547 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 70691166 is about 8407.8038749723. The cubic root of 70691166 is about 413.4805148469.

The spelling of 70691166 in words is "seventy million, six hundred ninety-one thousand, one hundred sixty-six".