215104143511144 has 16 divisors (see below), whose sum is σ = 403379764725600. Its totient is φ = 107536206250992.

The previous prime is 215104143511097. The next prime is 215104143511241. The reversal of 215104143511144 is 441115341401512.

It is a happy 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, 1983130452 + ... + 1983238915.

It is an arithmetic number, because the mean of its divisors is an integer number (25211235295350).

Almost surely, 2^{215104143511144} is an apocalyptic number.

It is an amenable number.

215104143511144 is a deficient number, since it is larger than the sum of its proper divisors (188275621214456).

215104143511144 is a wasteful number, since it uses less digits than its factorization.

215104143511144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3966376152 (or 3966376148 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 37.

Adding to 215104143511144 its reverse (441115341401512), we get a palindrome (656219484912656).

The spelling of 215104143511144 in words is "two hundred fifteen trillion, one hundred four billion, one hundred forty-three million, five hundred eleven thousand, one hundred forty-four".