16528434557713 has 16 divisors (see below), whose sum is σ = 17822696322816. Its totient is φ = 15237447534720.

The previous prime is 16528434557669. The next prime is 16528434557717. The reversal of 16528434557713 is 31775543482561.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16528434557713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16528434557717) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34963320 + ... + 35432902.

It is an arithmetic number, because the mean of its divisors is an integer number (1113918520176).

Almost surely, 2^{16528434557713} is an apocalyptic number.

16528434557713 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

16528434557713 is a deficient number, since it is larger than the sum of its proper divisors (1294261765103).

16528434557713 is a wasteful number, since it uses less digits than its factorization.

16528434557713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473064.

The product of its digits is 84672000, while the sum is 61.

The spelling of 16528434557713 in words is "sixteen trillion, five hundred twenty-eight billion, four hundred thirty-four million, five hundred fifty-seven thousand, seven hundred thirteen".