70065718464 has 336 divisors, whose sum is σ = 219952425728. Its totient is φ = 19278065664.

The previous prime is 70065718447. The next prime is 70065718519. The reversal of 70065718464 is 46481756007.

It is a tau number, because it is divible by the number of its divisors (336).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 252944694 + ... + 252944970.

Almost surely, 2^70065718464 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 70065718464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109976212864).

70065718464 is an abundant number, since it is smaller than the sum of its proper divisors (149886707264).

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

70065718464 is a wasteful number, since it uses less digits than its factorization.

70065718464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472 (or 409 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 48.

The spelling of 70065718464 in words is "seventy billion, sixty-five million, seven hundred eighteen thousand, four hundred sixty-four".