16440606045 has 72 divisors (see below), whose sum is σ = 31190586336. Its totient is φ = 8306610912.

The previous prime is 16440606043. The next prime is 16440606047. The reversal of 16440606045 is 54060604461.

16440606045 is a `hidden beast` number, since 1 + 6 + 4 + 4 + 0 + 606 + 0 + 45 = 666.

It is an interprime number because it is at equal distance from previous prime (16440606043) and next prime (16440606047).

It is not a de Polignac number, because 16440606045 - 2¹ = 16440606043 is a prime.

It is a super-3 number, since 3×16440606045³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16440606043) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 419874 + ... + 457356.

It is an arithmetic number, because the mean of its divisors is an integer number (433202588).

Almost surely, 2^16440606045 is an apocalyptic number.

16440606045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16440606045 is a deficient number, since it is larger than the sum of its proper divisors (14749980291).

16440606045 is an equidigital number, since it uses as much as digits as its factorization.

16440606045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37541 (or 37510 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 16440606045 in words is "sixteen billion, four hundred forty million, six hundred six thousand, forty-five".