671245686542176 has 12 divisors (see below), whose sum is σ = 1321514945379972. Its totient is φ = 335622843271072.

The previous prime is 671245686542111. The next prime is 671245686542209.

671245686542176 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10488213852190 + ... + 10488213852253.

It is an arithmetic number, because the mean of its divisors is an integer number (110126245448331).

Almost surely, 2^{671245686542176} is an apocalyptic number.

It is an amenable number.

671245686542176 is a deficient number, since it is larger than the sum of its proper divisors (650269258837796).

671245686542176 is a wasteful number, since it uses less digits than its factorization.

671245686542176 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20976427704453 (or 20976427704445 counting only the distinct ones).

The product of its digits is 812851200, while the sum is 70.

The spelling of 671245686542176 in words is "six hundred seventy-one trillion, two hundred forty-five billion, six hundred eighty-six million, five hundred forty-two thousand, one hundred seventy-six".