71051656655 has 32 divisors (see below), whose sum is σ = 103194777600. Its totient is φ = 45846028800.

The previous prime is 71051656651. The next prime is 71051656667. The reversal of 71051656655 is 55665615017.

It is not a de Polignac number, because 71051656655 - 2² = 71051656651 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71051656651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4246496 + ... + 4263194.

It is an arithmetic number, because the mean of its divisors is an integer number (3224836800).

Almost surely, 2^71051656655 is an apocalyptic number.

71051656655 is a deficient number, since it is larger than the sum of its proper divisors (32143120945).

71051656655 is a wasteful number, since it uses less digits than its factorization.

71051656655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23879.

The product of its (nonzero) digits is 945000, while the sum is 47.

The spelling of 71051656655 in words is "seventy-one billion, fifty-one million, six hundred fifty-six thousand, six hundred fifty-five".