71658625201 has 4 divisors (see below), whose sum is σ = 71974302192. Its totient is φ = 71342948212.

The previous prime is 71658625189. The next prime is 71658625211. The reversal of 71658625201 is 10252685617.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10252685617 = 52189 ⋅196453.

It is a cyclic number.

It is not a de Polignac number, because 71658625201 - 2⁵ = 71658625169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71658625211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157838155 + ... + 157838608.

It is an arithmetic number, because the mean of its divisors is an integer number (17993575548).

Almost surely, 2^71658625201 is an apocalyptic number.

It is an amenable number.

71658625201 is a deficient number, since it is larger than the sum of its proper divisors (315676991).

71658625201 is a wasteful number, since it uses less digits than its factorization.

71658625201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315676990.

The product of its (nonzero) digits is 201600, while the sum is 43.

The spelling of 71658625201 in words is "seventy-one billion, six hundred fifty-eight million, six hundred twenty-five thousand, two hundred one".