16442265506 has 8 divisors (see below), whose sum is σ = 25264944684. Its totient is φ = 8020617280.

The previous prime is 16442265457. The next prime is 16442265523. The reversal of 16442265506 is 60556224461.

It can be written as a sum of positive squares in 2 ways, for example, as 16432932481 + 9333025 = 128191^2 + 3055^2 .

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

It is a super-3 number, since 3×16442265506³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100257635 + ... + 100257798.

Almost surely, 2^16442265506 is an apocalyptic number.

16442265506 is a deficient number, since it is larger than the sum of its proper divisors (8822679178).

16442265506 is a wasteful number, since it uses less digits than its factorization.

16442265506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200515476.

The product of its (nonzero) digits is 345600, while the sum is 41.

Adding to 16442265506 its reverse (60556224461), we get a palindrome (76998489967).

The spelling of 16442265506 in words is "sixteen billion, four hundred forty-two million, two hundred sixty-five thousand, five hundred six".