16442731566103 has 4 divisors (see below), whose sum is σ = 16453819046728. Its totient is φ = 16431644085480.

The previous prime is 16442731566061. The next prime is 16442731566109. The reversal of 16442731566103 is 30166513724461.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16442731566103 is a prime.

It is a super-3 number, since 3×16442731566103³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16442731566109) 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, 5543738088 + ... + 5543741053.

It is an arithmetic number, because the mean of its divisors is an integer number (4113454761682).

Almost surely, 2^{16442731566103} is an apocalyptic number.

16442731566103 is a deficient number, since it is larger than the sum of its proper divisors (11087480625).

16442731566103 is a wasteful number, since it uses less digits than its factorization.

16442731566103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11087480624.

The product of its (nonzero) digits is 2177280, while the sum is 49.

The spelling of 16442731566103 in words is "sixteen trillion, four hundred forty-two billion, seven hundred thirty-one million, five hundred sixty-six thousand, one hundred three".