71662454125 has 16 divisors (see below), whose sum is σ = 93323213568. Its totient is φ = 54837354000.

The previous prime is 71662454117. The next prime is 71662454131. The reversal of 71662454125 is 52145426617.

It is not a de Polignac number, because 71662454125 - 2³ = 71662454117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12460161 + ... + 12465910.

It is an arithmetic number, because the mean of its divisors is an integer number (5832700848).

Almost surely, 2^71662454125 is an apocalyptic number.

It is an amenable number.

71662454125 is a deficient number, since it is larger than the sum of its proper divisors (21660759443).

71662454125 is a wasteful number, since it uses less digits than its factorization.

71662454125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24926109 (or 24926099 counting only the distinct ones).

The product of its digits is 403200, while the sum is 43.

The spelling of 71662454125 in words is "seventy-one billion, six hundred sixty-two million, four hundred fifty-four thousand, one hundred twenty-five".