70320315456 has 224 divisors, whose sum is σ = 216273888000. Its totient is φ = 22376116224.

The previous prime is 70320315451. The next prime is 70320315467. The reversal of 70320315456 is 65451302307.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 70320315456.

It is not an unprimeable number, because it can be changed into a prime (70320315451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4452085 + ... + 4467851.

Almost surely, 2^70320315456 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 70320315456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108136944000).

70320315456 is an abundant number, since it is smaller than the sum of its proper divisors (145953572544).

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

70320315456 is a wasteful number, since it uses less digits than its factorization.

70320315456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15906 (or 15890 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 36.

The spelling of 70320315456 in words is "seventy billion, three hundred twenty million, three hundred fifteen thousand, four hundred fifty-six".