71607070064 has 80 divisors (see below), whose sum is σ = 152545861440. Its totient is φ = 32424837120.

The previous prime is 71607070063. The next prime is 71607070091. The reversal of 71607070064 is 46007070617.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71607070061) 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, 770117 + ... + 858075.

It is an arithmetic number, because the mean of its divisors is an integer number (1906823268).

Almost surely, 2^71607070064 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 71607070064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76272930720).

71607070064 is an abundant number, since it is smaller than the sum of its proper divisors (80938791376).

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

71607070064 is a wasteful number, since it uses less digits than its factorization.

71607070064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88098 (or 88092 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 38.

The spelling of 71607070064 in words is "seventy-one billion, six hundred seven million, seventy thousand, sixty-four".