45144454661 has 4 divisors (see below), whose sum is σ = 46600727424. Its totient is φ = 43688181900.

The previous prime is 45144454643. The next prime is 45144454739. The reversal of 45144454661 is 16645444154.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 45144454661 - 2¹⁴ = 45144438277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45144454561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 728136335 + ... + 728136396.

It is an arithmetic number, because the mean of its divisors is an integer number (11650181856).

Almost surely, 2^45144454661 is an apocalyptic number.

It is an amenable number.

45144454661 is a deficient number, since it is larger than the sum of its proper divisors (1456272763).

45144454661 is a wasteful number, since it uses less digits than its factorization.

45144454661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1456272762.

The product of its digits is 921600, while the sum is 44.

The spelling of 45144454661 in words is "forty-five billion, one hundred forty-four million, four hundred fifty-four thousand, six hundred sixty-one".