70663836608 has 56 divisors (see below), whose sum is σ = 142966421712. Its totient is φ = 34641711104.

The previous prime is 70663836599. The next prime is 70663836671. The reversal of 70663836608 is 80663836607.

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a self number, because there is not a number n which added to its sum of digits gives 70663836608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5648216 + ... + 5660712.

Almost surely, 2^70663836608 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 70663836608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71483210856).

70663836608 is an abundant number, since it is smaller than the sum of its proper divisors (72302585104).

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

70663836608 is a wasteful number, since it uses less digits than its factorization.

70663836608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14229 (or 14219 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 53.

Subtracting 70663836608 from its reverse (80663836607), we obtain a palindrome (9999999999).

The spelling of 70663836608 in words is "seventy billion, six hundred sixty-three million, eight hundred thirty-six thousand, six hundred eight".