545220555012 has 72 divisors (see below), whose sum is σ = 1617651404096. Its totient is φ = 151567101504.

The previous prime is 545220554987. The next prime is 545220555023. The reversal of 545220555012 is 210555022545.

545220555012 is a `hidden beast` number, since 54 + 52 + 2 + 0 + 5 + 550 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29228158 + ... + 29246805.

Almost surely, 2^545220555012 is an apocalyptic number.

It is an amenable number.

545220555012 is an abundant number, since it is smaller than the sum of its proper divisors (1072430849084).

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

545220555012 is a wasteful number, since it uses less digits than its factorization.

545220555012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58475017 (or 58475012 counting only the distinct ones).

The product of its (nonzero) digits is 100000, while the sum is 36.

Adding to 545220555012 its reverse (210555022545), we get a palindrome (755775577557).

The spelling of 545220555012 in words is "five hundred forty-five billion, two hundred twenty million, five hundred fifty-five thousand, twelve".