16234025643 has 64 divisors (see below), whose sum is σ = 26795059200. Its totient is φ = 9630900000.

The previous prime is 16234025567. The next prime is 16234025653. The reversal of 16234025643 is 34652043261.

16234025643 is a `hidden beast` number, since 1 + 6 + 2 + 3 + 4 + 0 + 2 + 5 + 643 = 666.

It is not a de Polignac number, because 16234025643 - 2⁸ = 16234025387 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16234025598 and 16234025607.

It is not an unprimeable number, because it can be changed into a prime (16234025653) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4396428 + ... + 4400118.

It is an arithmetic number, because the mean of its divisors is an integer number (418672800).

Almost surely, 2^16234025643 is an apocalyptic number.

16234025643 is a deficient number, since it is larger than the sum of its proper divisors (10561033557).

16234025643 is a wasteful number, since it uses less digits than its factorization.

16234025643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4021 (or 4015 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

The spelling of 16234025643 in words is "sixteen billion, two hundred thirty-four million, twenty-five thousand, six hundred forty-three".