44561416545 has 24 divisors (see below), whose sum is σ = 80100523776. Its totient is φ = 23766088176.

The previous prime is 44561416541. The next prime is 44561416553. The reversal of 44561416545 is 54561416544.

44561416545 is a `hidden beast` number, since 4 + 4 + 5 + 61 + 41 + 6 + 545 = 666.

It is not a de Polignac number, because 44561416545 - 2² = 44561416541 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 44561416545.

It is not an unprimeable number, because it can be changed into a prime (44561416541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18336817 + ... + 18339246.

It is an arithmetic number, because the mean of its divisors is an integer number (3337521824).

Almost surely, 2^44561416545 is an apocalyptic number.

44561416545 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

44561416545 is a deficient number, since it is larger than the sum of its proper divisors (35539107231).

44561416545 is an equidigital number, since it uses as much as digits as its factorization.

44561416545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36676083 (or 36676071 counting only the distinct ones).

The product of its digits is 1152000, while the sum is 45.

Subtracting 44561416545 from its reverse (54561416544), we obtain a palindrome (9999999999).

The spelling of 44561416545 in words is "forty-four billion, five hundred sixty-one million, four hundred sixteen thousand, five hundred forty-five".