1641504316 has 12 divisors (see below), whose sum is σ = 3023823880. Its totient is φ = 777554640.

The previous prime is 1641504311. The next prime is 1641504329. The reversal of 1641504316 is 6134051461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1641504311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10799295 + ... + 10799446.

Almost surely, 2^1641504316 is an apocalyptic number.

It is an amenable number.

1641504316 is a deficient number, since it is larger than the sum of its proper divisors (1382319564).

1641504316 is a wasteful number, since it uses less digits than its factorization.

1641504316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21598764 (or 21598762 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 1641504316 is about 40515.4824233897. The cubic root of 1641504316 is about 1179.6341669724.

Adding to 1641504316 its reverse (6134051461), we get a palindrome (7775555777).

The spelling of 1641504316 in words is "one billion, six hundred forty-one million, five hundred four thousand, three hundred sixteen".