45245220012 has 18 divisors (see below), whose sum is σ = 114369861788. Its totient is φ = 15081739992.

The previous prime is 45245219977. The next prime is 45245220019. The reversal of 45245220012 is 21002254254.

45245220012 is a `hidden beast` number, since 4 + 5 + 2 + 452 + 200 + 1 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (45245220019) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 628405798 + ... + 628405869.

Almost surely, 2^45245220012 is an apocalyptic number.

It is an amenable number.

45245220012 is an abundant number, since it is smaller than the sum of its proper divisors (69124641776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45245220012 is a wasteful number, since it uses less digits than its factorization.

45245220012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256811677 (or 1256811672 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

Adding to 45245220012 its reverse (21002254254), we get a palindrome (66247474266).

The spelling of 45245220012 in words is "forty-five billion, two hundred forty-five million, two hundred twenty thousand, twelve".