70598564640 has 288 divisors, whose sum is σ = 249731838720. Its totient is φ = 18149548032.

The previous prime is 70598564639. The next prime is 70598564681. The reversal of 70598564640 is 4646589507.

70598564640 is a `hidden beast` number, since 7 + 0 + 598 + 5 + 6 + 4 + 6 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

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, 4526776 + ... + 4542344.

It is an arithmetic number, because the mean of its divisors is an integer number (867124440).

Almost surely, 2^70598564640 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 70598564640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124865919360).

70598564640 is an abundant number, since it is smaller than the sum of its proper divisors (179133274080).

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

70598564640 is a wasteful number, since it uses less digits than its factorization.

70598564640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15704 (or 15693 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 54.

The spelling of 70598564640 in words is "seventy billion, five hundred ninety-eight million, five hundred sixty-four thousand, six hundred forty".