215104124354 has 16 divisors (see below), whose sum is σ = 371402808000. Its totient is φ = 91524261744.

The previous prime is 215104124251. The next prime is 215104124387. The reversal of 215104124354 is 453421401512.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 215104124354.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55266329 + ... + 55270220.

It is an arithmetic number, because the mean of its divisors is an integer number (23212675500).

Almost surely, 2^215104124354 is an apocalyptic number.

215104124354 is a deficient number, since it is larger than the sum of its proper divisors (156298683646).

215104124354 is a wasteful number, since it uses less digits than its factorization.

215104124354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110536697.

The product of its (nonzero) digits is 19200, while the sum is 32.

Adding to 215104124354 its reverse (453421401512), we get a palindrome (668525525866).

The spelling of 215104124354 in words is "two hundred fifteen billion, one hundred four million, one hundred twenty-four thousand, three hundred fifty-four".