45412166521 has 8 divisors (see below), whose sum is σ = 48198235680. Its totient is φ = 42638849088.

The previous prime is 45412166491. The next prime is 45412166539. The reversal of 45412166521 is 12566121454.

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

It is a cyclic number.

It is not a de Polignac number, because 45412166521 - 2⁵ = 45412166489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45412166581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3180591 + ... + 3194836.

It is an arithmetic number, because the mean of its divisors is an integer number (6024779460).

Almost surely, 2^45412166521 is an apocalyptic number.

It is an amenable number.

45412166521 is a deficient number, since it is larger than the sum of its proper divisors (2786069159).

45412166521 is a wasteful number, since it uses less digits than its factorization.

45412166521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6375863.

The product of its digits is 57600, while the sum is 37.

Adding to 45412166521 its reverse (12566121454), we get a palindrome (57978287975).

The spelling of 45412166521 in words is "forty-five billion, four hundred twelve million, one hundred sixty-six thousand, five hundred twenty-one".