6503032161 has 32 divisors (see below), whose sum is σ = 9953111040. Its totient is φ = 4192041600.

The previous prime is 6503032091. The next prime is 6503032187. The reversal of 6503032161 is 1612303056.

6503032161 is a `hidden beast` number, since 650 + 3 + 0 + 3 + 2 + 1 + 6 + 1 = 666.

It is not a de Polignac number, because 6503032161 - 2⁷ = 6503032033 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (6503032961) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1354381 + ... + 1359173.

It is an arithmetic number, because the mean of its divisors is an integer number (311034720).

Almost surely, 2^6503032161 is an apocalyptic number.

It is an amenable number.

6503032161 is a deficient number, since it is larger than the sum of its proper divisors (3450078879).

6503032161 is a wasteful number, since it uses less digits than its factorization.

6503032161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6454 (or 6448 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 6503032161 is about 80641.3799547106. The cubic root of 6503032161 is about 1866.5457275211.

The spelling of 6503032161 in words is "six billion, five hundred three million, thirty-two thousand, one hundred sixty-one".