971016657151771 has 4 divisors (see below), whose sum is σ = 971018980670592. Its totient is φ = 971014333632952.

The previous prime is 971016657151769. The next prime is 971016657151787. The reversal of 971016657151771 is 177151756610179.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 971016657151771 - 2¹ = 971016657151769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (971016657151711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1161132436 + ... + 1161968401.

It is an arithmetic number, because the mean of its divisors is an integer number (242754745167648).

Almost surely, 2^{971016657151771} is an apocalyptic number.

971016657151771 is a deficient number, since it is larger than the sum of its proper divisors (2323518821).

971016657151771 is a wasteful number, since it uses less digits than its factorization.

971016657151771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2323518820.

The product of its (nonzero) digits is 19448100, while the sum is 64.

The spelling of 971016657151771 in words is "nine hundred seventy-one trillion, sixteen billion, six hundred fifty-seven million, one hundred fifty-one thousand, seven hundred seventy-one".