71000667120 has 40 divisors (see below), whose sum is σ = 220102068816. Its totient is φ = 18933511168.

The previous prime is 71000667109. The next prime is 71000667151. The reversal of 71000667120 is 2176600017.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147917817 + ... + 147918296.

Almost surely, 2^71000667120 is an apocalyptic number.

It is an amenable number.

71000667120 is an abundant number, since it is smaller than the sum of its proper divisors (149101401696).

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

71000667120 is a wasteful number, since it uses less digits than its factorization.

71000667120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295836129 (or 295836123 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 30.

The spelling of 71000667120 in words is "seventy-one billion, six hundred sixty-seven thousand, one hundred twenty".