215044541012 has 24 divisors (see below), whose sum is σ = 430178637504. Its totient is φ = 92142755712.

The previous prime is 215044540979. The next prime is 215044541057. The reversal of 215044541012 is 210145440512.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 662318 + ... + 932069.

It is an arithmetic number, because the mean of its divisors is an integer number (17924109896).

Almost surely, 2^215044541012 is an apocalyptic number.

It is an amenable number.

215044541012 is an abundant number, since it is smaller than the sum of its proper divisors (215134096492).

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

215044541012 is a wasteful number, since it uses less digits than its factorization.

215044541012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1599215 (or 1599213 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 29.

Adding to 215044541012 its reverse (210145440512), we get a palindrome (425189981524).

The spelling of 215044541012 in words is "two hundred fifteen billion, forty-four million, five hundred forty-one thousand, twelve".