70013664 has 72 divisors (see below), whose sum is σ = 227550960. Its totient is φ = 20003328.

The previous prime is 70013653. The next prime is 70013677. The reversal of 70013664 is 46631007.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

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, 15349 + ... + 19380.

It is an arithmetic number, because the mean of its divisors is an integer number (3160430).

Almost surely, 2^70013664 is an apocalyptic number.

It is an amenable number.

70013664 is an abundant number, since it is smaller than the sum of its proper divisors (157537296).

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

70013664 is a wasteful number, since it uses less digits than its factorization.

70013664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34752 (or 34741 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 70013664 is about 8367.4168056814. The cubic root of 70013664 is about 412.1553440659.

The spelling of 70013664 in words is "seventy million, thirteen thousand, six hundred sixty-four".