16529639045 has 8 divisors (see below), whose sum is σ = 19885034520. Its totient is φ = 13190732800.

The previous prime is 16529639041. The next prime is 16529639047. The reversal of 16529639045 is 54093692561.

It can be written as a sum of positive squares in 4 ways, for example, as 4210192996 + 12319446049 = 64886^2 + 110993^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16529639045 - 2² = 16529639041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16529638984 and 16529639002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16529639041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4120100 + ... + 4124109.

It is an arithmetic number, because the mean of its divisors is an integer number (2485629315).

Almost surely, 2^16529639045 is an apocalyptic number.

It is an amenable number.

16529639045 is a deficient number, since it is larger than the sum of its proper divisors (3355395475).

16529639045 is an equidigital number, since it uses as much as digits as its factorization.

16529639045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8244615.

The product of its (nonzero) digits is 1749600, while the sum is 50.

The spelling of 16529639045 in words is "sixteen billion, five hundred twenty-nine million, six hundred thirty-nine thousand, forty-five".