671216502 has 32 divisors (see below), whose sum is σ = 1470078720. Its totient is φ = 202620320.

The previous prime is 671216501. The next prime is 671216503. The reversal of 671216502 is 205612176.

It is an interprime number because it is at equal distance from previous prime (671216501) and next prime (671216503).

It is a self number, because there is not a number n which added to its sum of digits gives 671216502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671216501) 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, 1977 + ... + 36692.

It is an arithmetic number, because the mean of its divisors is an integer number (45939960).

Almost surely, 2^671216502 is an apocalyptic number.

671216502 is an abundant number, since it is smaller than the sum of its proper divisors (798862218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

671216502 is a wasteful number, since it uses less digits than its factorization.

671216502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38948.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 671216502 is about 25907.8463404429. The cubic root of 671216502 is about 875.5632844350.

Adding to 671216502 its reverse (205612176), we get a palindrome (876828678).

The spelling of 671216502 in words is "six hundred seventy-one million, two hundred sixteen thousand, five hundred two".