1641063535 has 16 divisors (see below), whose sum is σ = 2080604160. Its totient is φ = 1239144480.

The previous prime is 1641063521. The next prime is 1641063551. The reversal of 1641063535 is 5353601461.

It is not a de Polignac number, because 1641063535 - 2¹⁹ = 1640539247 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1641063535.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6127 + ... + 57616.

It is an arithmetic number, because the mean of its divisors is an integer number (130037760).

Almost surely, 2^1641063535 is an apocalyptic number.

1641063535 is a deficient number, since it is larger than the sum of its proper divisors (439540625).

1641063535 is a wasteful number, since it uses less digits than its factorization.

1641063535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64038.

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 1641063535 is about 40510.0423969168. The cubic root of 1641063535 is about 1179.5285713774.

Adding to 1641063535 its reverse (5353601461), we get a palindrome (6994664996).

The spelling of 1641063535 in words is "one billion, six hundred forty-one million, sixty-three thousand, five hundred thirty-five".