671075655 has 16 divisors (see below), whose sum is σ = 1074056064. Its totient is φ = 357795360.

The previous prime is 671075653. The next prime is 671075681. The reversal of 671075655 is 556570176.

It is not a de Polignac number, because 671075655 - 2¹ = 671075653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671075651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70320 + ... + 79290.

It is an arithmetic number, because the mean of its divisors is an integer number (67128504).

Almost surely, 2^671075655 is an apocalyptic number.

671075655 is a deficient number, since it is larger than the sum of its proper divisors (402980409).

671075655 is a wasteful number, since it uses less digits than its factorization.

671075655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13966.

The product of its (nonzero) digits is 220500, while the sum is 42.

The square root of 671075655 is about 25905.1279672578. The cubic root of 671075655 is about 875.5020378833.

The spelling of 671075655 in words is "six hundred seventy-one million, seventy-five thousand, six hundred fifty-five".