16525006943 has 4 divisors (see below), whose sum is σ = 16550548560. Its totient is φ = 16499465328.

The previous prime is 16525006907. The next prime is 16525006969. The reversal of 16525006943 is 34960052561.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16525006943 - 2¹⁸ = 16524744799 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16525006943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16525006343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12769838 + ... + 12771131.

It is an arithmetic number, because the mean of its divisors is an integer number (4137637140).

Almost surely, 2^16525006943 is an apocalyptic number.

16525006943 is a deficient number, since it is larger than the sum of its proper divisors (25541617).

16525006943 is an equidigital number, since it uses as much as digits as its factorization.

16525006943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25541616.

The product of its (nonzero) digits is 194400, while the sum is 41.

The spelling of 16525006943 in words is "sixteen billion, five hundred twenty-five million, six thousand, nine hundred forty-three".