45345563661 has 8 divisors (see below), whose sum is σ = 60462245440. Its totient is φ = 30229628832.

The previous prime is 45345563657. The next prime is 45345563663. The reversal of 45345563661 is 16636554354.

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

It is not a de Polignac number, because 45345563661 - 2² = 45345563657 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45345563661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45345563663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25096 + ... + 302193.

It is an arithmetic number, because the mean of its divisors is an integer number (7557780680).

Almost surely, 2^45345563661 is an apocalyptic number.

It is an amenable number.

45345563661 is a deficient number, since it is larger than the sum of its proper divisors (15116681779).

45345563661 is a wasteful number, since it uses less digits than its factorization.

45345563661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373475.

The product of its digits is 3888000, while the sum is 48.

The spelling of 45345563661 in words is "forty-five billion, three hundred forty-five million, five hundred sixty-three thousand, six hundred sixty-one".