71611056745 has 8 divisors (see below), whose sum is σ = 86318620416. Its totient is φ = 57031943856.

The previous prime is 71611056709. The next prime is 71611056827. The reversal of 71611056745 is 54765011617.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71611056745 - 2⁹ = 71611056233 is a prime.

It is a Duffinian 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, 32111467 + ... + 32113696.

It is an arithmetic number, because the mean of its divisors is an integer number (10789827552).

Almost surely, 2^71611056745 is an apocalyptic number.

It is an amenable number.

71611056745 is a deficient number, since it is larger than the sum of its proper divisors (14707563671).

71611056745 is a wasteful number, since it uses less digits than its factorization.

71611056745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64225391.

The product of its (nonzero) digits is 176400, while the sum is 43.

The spelling of 71611056745 in words is "seventy-one billion, six hundred eleven million, fifty-six thousand, seven hundred forty-five".