671346671522 has 8 divisors (see below), whose sum is σ = 1007030057196. Its totient is φ = 335669985792.

The previous prime is 671346671521. The next prime is 671346671603. The reversal of 671346671522 is 225176643176.

It can be written as a sum of positive squares in 2 ways, for example, as 564182756641 + 107163914881 = 751121^2 + 327359^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (671346671521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1416503 + ... + 1830074.

Almost surely, 2^671346671522 is an apocalyptic number.

671346671522 is a deficient number, since it is larger than the sum of its proper divisors (335683385674).

671346671522 is a wasteful number, since it uses less digits than its factorization.

671346671522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3349972.

The product of its digits is 2540160, while the sum is 50.

The spelling of 671346671522 in words is "six hundred seventy-one billion, three hundred forty-six million, six hundred seventy-one thousand, five hundred twenty-two".