215044145102 has 16 divisors (see below), whose sum is σ = 330559112832. Its totient is φ = 104888935800.

The previous prime is 215044145039. The next prime is 215044145123. The reversal of 215044145102 is 201541440512.

It is a happy number.

215044145102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7776524 + ... + 7804127.

It is an arithmetic number, because the mean of its divisors is an integer number (20659944552).

Almost surely, 2^215044145102 is an apocalyptic number.

215044145102 is a deficient number, since it is larger than the sum of its proper divisors (115514967730).

215044145102 is a wasteful number, since it uses less digits than its factorization.

215044145102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15580823.

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

Adding to 215044145102 its reverse (201541440512), we get a palindrome (416585585614).

The spelling of 215044145102 in words is "two hundred fifteen billion, forty-four million, one hundred forty-five thousand, one hundred two".