671081057306 has 32 divisors (see below), whose sum is σ = 1163706626880. Its totient is φ = 287334947200.

The previous prime is 671081057303. The next prime is 671081057341. The reversal of 671081057306 is 603750180176.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (671081057303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12801296 + ... + 12853611.

It is an arithmetic number, because the mean of its divisors is an integer number (36365832090).

Almost surely, 2^671081057306 is an apocalyptic number.

671081057306 is a deficient number, since it is larger than the sum of its proper divisors (492625569574).

671081057306 is a wasteful number, since it uses less digits than its factorization.

671081057306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25654990.

The product of its (nonzero) digits is 211680, while the sum is 44.

The spelling of 671081057306 in words is "six hundred seventy-one billion, eighty-one million, fifty-seven thousand, three hundred six".