671071051057 has 16 divisors (see below), whose sum is σ = 771114251520. Its totient is φ = 577576170000.

The previous prime is 671071050989. The next prime is 671071051081. The reversal of 671071051057 is 750150170176.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 671071051057 - 2¹⁹ = 671070526769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (671071051457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 735819 + ... + 1372432.

It is an arithmetic number, because the mean of its divisors is an integer number (48194640720).

Almost surely, 2^671071051057 is an apocalyptic number.

It is an amenable number.

671071051057 is a deficient number, since it is larger than the sum of its proper divisors (100043200463).

671071051057 is a wasteful number, since it uses less digits than its factorization.

671071051057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2109804.

The product of its (nonzero) digits is 51450, while the sum is 40.

The spelling of 671071051057 in words is "six hundred seventy-one billion, seventy-one million, fifty-one thousand, fifty-seven".