70163664 has 80 divisors (see below), whose sum is σ = 190416384. Its totient is φ = 22233600.

The previous prime is 70163651. The next prime is 70163671. The reversal of 70163664 is 46636107.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90382 + ... + 91154.

Almost surely, 2^70163664 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 70163664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95208192).

70163664 is an abundant number, since it is smaller than the sum of its proper divisors (120252720).

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

70163664 is a wasteful number, since it uses less digits than its factorization.

70163664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876 (or 870 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 70163664 is about 8376.3753497560. The cubic root of 70163664 is about 412.4494733338.

The spelling of 70163664 in words is "seventy million, one hundred sixty-three thousand, six hundred sixty-four".