70062866640 has 240 divisors, whose sum is σ = 258176881872. Its totient is φ = 16920723456.

The previous prime is 70062866623. The next prime is 70062866689. The reversal of 70062866640 is 4666826007.

It can be written as a sum of positive squares in 8 ways, for example, as 8043937344 + 62018929296 = 89688^2 + 249036^2 .

It is a tau number, because it is divible by the number of its divisors (240).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 425464 + ... + 566696.

Almost surely, 2^70062866640 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 70062866640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129088440936).

70062866640 is an abundant number, since it is smaller than the sum of its proper divisors (188114015232).

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

70062866640 is a wasteful number, since it uses less digits than its factorization.

70062866640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141318 (or 141309 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The spelling of 70062866640 in words is "seventy billion, sixty-two million, eight hundred sixty-six thousand, six hundred forty".