70216128 has 84 divisors (see below), whose sum is σ = 202940920. Its totient is φ = 23210496.

The previous prime is 70216127. The next prime is 70216169. The reversal of 70216128 is 82161207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70216123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79626 + ... + 80502.

Almost surely, 2^70216128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70216128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101470460).

70216128 is an abundant number, since it is smaller than the sum of its proper divisors (132724792).

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

70216128 is a wasteful number, since it uses less digits than its factorization.

70216128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034 (or 1021 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 70216128 is about 8379.5064293788. The cubic root of 70216128 is about 412.5522490290.

The spelling of 70216128 in words is "seventy million, two hundred sixteen thousand, one hundred twenty-eight".