671045955 has 8 divisors (see below), whose sum is σ = 1073673552. Its totient is φ = 357891168.

The previous prime is 671045951. The next prime is 671045959. The reversal of 671045955 is 559540176.

It is an interprime number because it is at equal distance from previous prime (671045951) and next prime (671045959).

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

It is not a de Polignac number, because 671045955 - 2² = 671045951 is a prime.

It is not an unprimeable number, because it can be changed into a prime (671045951) 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 7 ways as a sum of consecutive naturals, for example, 22368184 + ... + 22368213.

It is an arithmetic number, because the mean of its divisors is an integer number (134209194).

Almost surely, 2^671045955 is an apocalyptic number.

671045955 is a deficient number, since it is larger than the sum of its proper divisors (402627597).

671045955 is a wasteful number, since it uses less digits than its factorization.

671045955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44736405.

The product of its (nonzero) digits is 189000, while the sum is 42.

The square root of 671045955 is about 25904.5547153392. The cubic root of 671045955 is about 875.4891219058.

The spelling of 671045955 in words is "six hundred seventy-one million, forty-five thousand, nine hundred fifty-five".