70646698320 has 640 divisors, whose sum is σ = 259183411200. Its totient is φ = 15737702400.

The previous prime is 70646698313. The next prime is 70646698321. The reversal of 70646698320 is 2389664607.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70646698321) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 295592761 + ... + 295592999.

It is an arithmetic number, because the mean of its divisors is an integer number (404974080).

Almost surely, 2^70646698320 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 70646698320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129591705600).

70646698320 is an abundant number, since it is smaller than the sum of its proper divisors (188536712880).

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

70646698320 is a wasteful number, since it uses less digits than its factorization.

70646698320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439 (or 433 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 51.

The spelling of 70646698320 in words is "seventy billion, six hundred forty-six million, six hundred ninety-eight thousand, three hundred twenty".