70050816 has 132 divisors (see below), whose sum is σ = 220977744. Its totient is φ = 21196800.

The previous prime is 70050803. The next prime is 70050823. The reversal of 70050816 is 61805007.

It is a tau number, because it is divible by the number of its divisors (132).

It is a self number, because there is not a number n which added to its sum of digits gives 70050816.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 101031 + ... + 101721.

Almost surely, 2^70050816 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 70050816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110488872).

70050816 is an abundant number, since it is smaller than the sum of its proper divisors (150926928).

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

70050816 is a wasteful number, since it uses less digits than its factorization.

70050816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728 (or 707 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 70050816 is about 8369.6365512488. The cubic root of 70050816 is about 412.2282331127.

The spelling of 70050816 in words is "seventy million, fifty thousand, eight hundred sixteen".