71660127233 has 2 divisors, whose sum is σ = 71660127234. Its totient is φ = 71660127232.

The previous prime is 71660127191. The next prime is 71660127247. The reversal of 71660127233 is 33272106617.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70922081344 + 738045889 = 266312^2 + 27167^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71660127233 is a prime.

It is not a weakly prime, because it can be changed into another prime (71660127263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35830063616 + 35830063617.

It is an arithmetic number, because the mean of its divisors is an integer number (35830063617).

Almost surely, 2^71660127233 is an apocalyptic number.

It is an amenable number.

71660127233 is a deficient number, since it is larger than the sum of its proper divisors (1).

71660127233 is an equidigital number, since it uses as much as digits as its factorization.

71660127233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63504, while the sum is 38.

The spelling of 71660127233 in words is "seventy-one billion, six hundred sixty million, one hundred twenty-seven thousand, two hundred thirty-three".