545665001212 has 12 divisors (see below), whose sum is σ = 960248467080. Its totient is φ = 271308296336.

The previous prime is 545665001201. The next prime is 545665001243. The reversal of 545665001212 is 212100566545.

It is a super-2 number, since 2×545665001212² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 381050263 + ... + 381051694.

It is an arithmetic number, because the mean of its divisors is an integer number (80020705590).

Almost surely, 2^545665001212 is an apocalyptic number.

It is an amenable number.

545665001212 is a deficient number, since it is larger than the sum of its proper divisors (414583465868).

545665001212 is a wasteful number, since it uses less digits than its factorization.

545665001212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762102140 (or 762102138 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 37.

Adding to 545665001212 its reverse (212100566545), we get a palindrome (757765567757).

The spelling of 545665001212 in words is "five hundred forty-five billion, six hundred sixty-five million, one thousand, two hundred twelve".