70720516616 has 64 divisors (see below), whose sum is σ = 139718952000. Its totient is φ = 33509226240.

The previous prime is 70720516589. The next prime is 70720516619. The reversal of 70720516616 is 61661502707.

It is not an unprimeable number, because it can be changed into a prime (70720516619) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9454670 + ... + 9462146.

It is an arithmetic number, because the mean of its divisors is an integer number (2183108625).

Almost surely, 2^70720516616 is an apocalyptic number.

It is an amenable number.

70720516616 is a deficient number, since it is larger than the sum of its proper divisors (68998435384).

70720516616 is a wasteful number, since it uses less digits than its factorization.

70720516616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8262 (or 8258 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 41.

The spelling of 70720516616 in words is "seventy billion, seven hundred twenty million, five hundred sixteen thousand, six hundred sixteen".