16432520157523 has 2 divisors, whose sum is σ = 16432520157524. Its totient is φ = 16432520157522.

The previous prime is 16432520157511. The next prime is 16432520157629. The reversal of 16432520157523 is 32575102523461.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (32575102523461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16432520157523 - 2¹⁷ = 16432520026451 is a prime.

It is not a weakly prime, because it can be changed into another prime (16432520152523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8216260078761 + 8216260078762.

It is an arithmetic number, because the mean of its divisors is an integer number (8216260078762).

Almost surely, 2^{16432520157523} is an apocalyptic number.

16432520157523 is a deficient number, since it is larger than the sum of its proper divisors (1).

16432520157523 is an equidigital number, since it uses as much as digits as its factorization.

16432520157523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512000, while the sum is 46.

The spelling of 16432520157523 in words is "sixteen trillion, four hundred thirty-two billion, five hundred twenty million, one hundred fifty-seven thousand, five hundred twenty-three".