71066025501 has 4 divisors (see below), whose sum is σ = 94754700672. Its totient is φ = 47377350332.

The previous prime is 71066025491. The next prime is 71066025509. The reversal of 71066025501 is 10552066017.

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.

It is a cyclic number.

It is not a de Polignac number, because 71066025501 - 2⁵ = 71066025469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71066025509) 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, 11844337581 + ... + 11844337586.

It is an arithmetic number, because the mean of its divisors is an integer number (23688675168).

Almost surely, 2^71066025501 is an apocalyptic number.

It is an amenable number.

71066025501 is a deficient number, since it is larger than the sum of its proper divisors (23688675171).

71066025501 is a wasteful number, since it uses less digits than its factorization.

71066025501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23688675170.

The product of its (nonzero) digits is 12600, while the sum is 33.

The spelling of 71066025501 in words is "seventy-one billion, sixty-six million, twenty-five thousand, five hundred one".