1641272116 has 24 divisors (see below), whose sum is σ = 3161075904. Its totient is φ = 739428480.

The previous prime is 1641272093. The next prime is 1641272131. The reversal of 1641272116 is 6112721461.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160080 + ... + 170023.

It is an arithmetic number, because the mean of its divisors is an integer number (131711496).

Almost surely, 2^1641272116 is an apocalyptic number.

It is an amenable number.

1641272116 is a deficient number, since it is larger than the sum of its proper divisors (1519803788).

1641272116 is a wasteful number, since it uses less digits than its factorization.

1641272116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330231 (or 330229 counting only the distinct ones).

The product of its digits is 4032, while the sum is 31.

The square root of 1641272116 is about 40512.6167508345. The cubic root of 1641272116 is about 1179.5785423913.

Adding to 1641272116 its reverse (6112721461), we get a palindrome (7753993577).

The spelling of 1641272116 in words is "one billion, six hundred forty-one million, two hundred seventy-two thousand, one hundred sixteen".