671304805503 has 8 divisors (see below), whose sum is σ = 908432373888. Its totient is φ = 440856887064.

The previous prime is 671304805487. The next prime is 671304805519. The reversal of 671304805503 is 305508403176.

It is an interprime number because it is at equal distance from previous prime (671304805487) and next prime (671304805519).

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

It is not a de Polignac number, because 671304805503 - 2⁴ = 671304805487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671304805553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1669912251 + ... + 1669912652.

It is an arithmetic number, because the mean of its divisors is an integer number (113554046736).

Almost surely, 2^671304805503 is an apocalyptic number.

671304805503 is a deficient number, since it is larger than the sum of its proper divisors (237127568385).

671304805503 is a wasteful number, since it uses less digits than its factorization.

671304805503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3339824973.

The product of its (nonzero) digits is 302400, while the sum is 42.

The spelling of 671304805503 in words is "six hundred seventy-one billion, three hundred four million, eight hundred five thousand, five hundred three".