16244366377645 has 16 divisors (see below), whose sum is σ = 23450513869440. Its totient is φ = 10552731240384.

The previous prime is 16244366377633. The next prime is 16244366377649. The reversal of 16244366377645 is 54677366344261.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 16244366377645 - 2⁹ = 16244366377133 is a prime.

It is a super-3 number, since 3×16244366377645³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16244366377649) 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, 12213808642 + ... + 12213809971.

It is an arithmetic number, because the mean of its divisors is an integer number (1465657116840).

Almost surely, 2^{16244366377645} is an apocalyptic number.

It is an amenable number.

16244366377645 is a deficient number, since it is larger than the sum of its proper divisors (7206147491795).

16244366377645 is a wasteful number, since it uses less digits than its factorization.

16244366377645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24427618644.

The product of its digits is 365783040, while the sum is 64.

The spelling of 16244366377645 in words is "sixteen trillion, two hundred forty-four billion, three hundred sixty-six million, three hundred seventy-seven thousand, six hundred forty-five".