70445491568640 has 480 divisors, whose sum is σ = 253048101384960. Its totient is φ = 18591743213568.

The previous prime is 70445491568597. The next prime is 70445491568651. The reversal of 70445491568640 is 4686519454407.

70445491568640 is a `hidden beast` number, since 7 + 0 + 4 + 4 + 5 + 4 + 9 + 1 + 568 + 64 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (480).

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 31 ways as a sum of consecutive naturals, for example, 214384309 + ... + 214712651.

It is an arithmetic number, because the mean of its divisors is an integer number (527183544552).

Almost surely, 2^{70445491568640} 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 70445491568640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126524050692480).

70445491568640 is an abundant number, since it is smaller than the sum of its proper divisors (182602609816320).

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

70445491568640 is an equidigital number, since it uses as much as digits as its factorization.

70445491568640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328482 (or 328450 counting only the distinct ones).

The product of its (nonzero) digits is 116121600, while the sum is 63.

The spelling of 70445491568640 in words is "seventy trillion, four hundred forty-five billion, four hundred ninety-one million, five hundred sixty-eight thousand, six hundred forty".